diff --git a/.eslintrc.yml b/.eslintrc.yml
index 74d28bdc78..0687c304b2 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -136,7 +136,7 @@ rules:
   import/max-dependencies: off
   import/no-unassigned-import: error
   import/no-named-default: error
-  import/no-default-export: off
+  import/no-default-export: error
   import/no-named-export: off
   import/no-anonymous-default-export: error
   import/group-exports: off
diff --git a/src/__testUtils__/__tests__/dedent-test.js b/src/__testUtils__/__tests__/dedent-test.js
index 9ee2440bce..dade58b523 100644
--- a/src/__testUtils__/__tests__/dedent-test.js
+++ b/src/__testUtils__/__tests__/dedent-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../dedent';
+import { dedent } from '../dedent';
 
 describe('dedent', () => {
   it('removes indentation in typical usage', () => {
diff --git a/src/__testUtils__/__tests__/genFuzzStrings-test.js b/src/__testUtils__/__tests__/genFuzzStrings-test.js
index 75da1b63cc..70f267353b 100644
--- a/src/__testUtils__/__tests__/genFuzzStrings-test.js
+++ b/src/__testUtils__/__tests__/genFuzzStrings-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import genFuzzStrings from '../genFuzzStrings';
+import { genFuzzStrings } from '../genFuzzStrings';
 
 function expectFuzzStrings(options: {|
   allowedChars: Array<string>,
diff --git a/src/__testUtils__/__tests__/inspectStr-test.js b/src/__testUtils__/__tests__/inspectStr-test.js
index b31e59b159..9c3eba3a95 100644
--- a/src/__testUtils__/__tests__/inspectStr-test.js
+++ b/src/__testUtils__/__tests__/inspectStr-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import inspectStr from '../inspectStr';
+import { inspectStr } from '../inspectStr';
 
 describe('inspectStr', () => {
   it('handles null and undefined values', () => {
diff --git a/src/__testUtils__/__tests__/resolveOnNextTick-test.js b/src/__testUtils__/__tests__/resolveOnNextTick-test.js
index 5d51eb8aa8..0916b44a0c 100644
--- a/src/__testUtils__/__tests__/resolveOnNextTick-test.js
+++ b/src/__testUtils__/__tests__/resolveOnNextTick-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import resolveOnNextTick from '../resolveOnNextTick';
+import { resolveOnNextTick } from '../resolveOnNextTick';
 
 describe('resolveOnNextTick', () => {
   it('resolves promise on the next tick', async () => {
diff --git a/src/__testUtils__/dedent.js b/src/__testUtils__/dedent.js
index c4b8e8da7b..2311f58c6f 100644
--- a/src/__testUtils__/dedent.js
+++ b/src/__testUtils__/dedent.js
@@ -10,7 +10,7 @@
  * `;
  * str === "{\n  test\n}\n";
  */
-export default function dedent(
+export function dedent(
   strings: $ReadOnlyArray<string>,
   ...values: $ReadOnlyArray<string>
 ): string {
diff --git a/src/__testUtils__/genFuzzStrings.js b/src/__testUtils__/genFuzzStrings.js
index 4ead99080c..86aaf96709 100644
--- a/src/__testUtils__/genFuzzStrings.js
+++ b/src/__testUtils__/genFuzzStrings.js
@@ -1,7 +1,7 @@
 /**
  * Generator that produces all possible combinations of allowed characters.
  */
-export default function* genFuzzStrings(options: {|
+export function* genFuzzStrings(options: {|
   allowedChars: Array<string>,
   maxLength: number,
 |}): Generator<string, void, void> {
diff --git a/src/__testUtils__/inspectStr.js b/src/__testUtils__/inspectStr.js
index a99a28150a..52e7d7f78c 100644
--- a/src/__testUtils__/inspectStr.js
+++ b/src/__testUtils__/inspectStr.js
@@ -1,7 +1,7 @@
 /**
  * Special inspect function to produce readable string literal for error messages in tests
  */
-export default function inspectStr(str: ?string): string {
+export function inspectStr(str: ?string): string {
   if (str == null) {
     return 'null';
   }
diff --git a/src/__testUtils__/kitchenSinkQuery.js b/src/__testUtils__/kitchenSinkQuery.js
index 2ccdc9dc92..8d176686ea 100644
--- a/src/__testUtils__/kitchenSinkQuery.js
+++ b/src/__testUtils__/kitchenSinkQuery.js
@@ -1,5 +1,5 @@
 // $FlowFixMe[incompatible-call]
-const kitchenSinkQuery: string = String.raw`
+export const kitchenSinkQuery: string = String.raw`
 query queryName($foo: ComplexType, $site: Site = MOBILE) @onQuery {
   whoever123is: node(id: [123, 456]) {
     id
@@ -65,5 +65,3 @@ query {
   __typename
 }
 `;
-
-export default kitchenSinkQuery;
diff --git a/src/__testUtils__/kitchenSinkSDL.js b/src/__testUtils__/kitchenSinkSDL.js
index 7b171ac027..1c97bd87f8 100644
--- a/src/__testUtils__/kitchenSinkSDL.js
+++ b/src/__testUtils__/kitchenSinkSDL.js
@@ -1,4 +1,4 @@
-const kitchenSinkSDL: string = `
+export const kitchenSinkSDL: string = `
 """This is a description of the schema as a whole."""
 schema {
   query: QueryType
@@ -156,5 +156,3 @@ extend schema @onSchema {
   subscription: SubscriptionType
 }
 `;
-
-export default kitchenSinkSDL;
diff --git a/src/__testUtils__/resolveOnNextTick.js b/src/__testUtils__/resolveOnNextTick.js
index b27ba839b2..6dd50b3982 100644
--- a/src/__testUtils__/resolveOnNextTick.js
+++ b/src/__testUtils__/resolveOnNextTick.js
@@ -1,3 +1,3 @@
-export default function resolveOnNextTick(): Promise<void> {
+export function resolveOnNextTick(): Promise<void> {
   return Promise.resolve(undefined);
 }
diff --git a/src/__tests__/starWarsSchema.js b/src/__tests__/starWarsSchema.js
index e06c2cef71..16a80fcee7 100644
--- a/src/__tests__/starWarsSchema.js
+++ b/src/__tests__/starWarsSchema.js
@@ -1,4 +1,4 @@
-import invariant from '../jsutils/invariant';
+import { invariant } from '../jsutils/invariant';
 
 import { GraphQLSchema } from '../type/schema';
 import { GraphQLString } from '../type/scalars';
diff --git a/src/error/GraphQLError.js b/src/error/GraphQLError.js
index 670bef58be..f4d955e8a0 100644
--- a/src/error/GraphQLError.js
+++ b/src/error/GraphQLError.js
@@ -1,7 +1,7 @@
 // FIXME:
 // flowlint uninitialized-instance-property:off
 
-import isObjectLike from '../jsutils/isObjectLike';
+import { isObjectLike } from '../jsutils/isObjectLike';
 
 import type { ASTNode } from '../language/ast';
 import type { Source } from '../language/source';
diff --git a/src/error/__tests__/GraphQLError-test.js b/src/error/__tests__/GraphQLError-test.js
index b72d31b174..1a438748c0 100644
--- a/src/error/__tests__/GraphQLError-test.js
+++ b/src/error/__tests__/GraphQLError-test.js
@@ -1,9 +1,9 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import { Kind } from '../../language/kinds';
 import { parse } from '../../language/parser';
diff --git a/src/error/formatError.js b/src/error/formatError.js
index d73cc897b0..ef59ad8df8 100644
--- a/src/error/formatError.js
+++ b/src/error/formatError.js
@@ -1,4 +1,4 @@
-import devAssert from '../jsutils/devAssert';
+import { devAssert } from '../jsutils/devAssert';
 
 import type { SourceLocation } from '../language/location';
 
diff --git a/src/error/locatedError.js b/src/error/locatedError.js
index 1b7c335070..34fd247855 100644
--- a/src/error/locatedError.js
+++ b/src/error/locatedError.js
@@ -1,4 +1,4 @@
-import inspect from '../jsutils/inspect';
+import { inspect } from '../jsutils/inspect';
 
 import type { ASTNode } from '../language/ast';
 
diff --git a/src/execution/__tests__/executor-test.js b/src/execution/__tests__/executor-test.js
index d1ea9bb49f..32464aed92 100644
--- a/src/execution/__tests__/executor-test.js
+++ b/src/execution/__tests__/executor-test.js
@@ -1,8 +1,8 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import inspect from '../../jsutils/inspect';
-import invariant from '../../jsutils/invariant';
+import { inspect } from '../../jsutils/inspect';
+import { invariant } from '../../jsutils/invariant';
 
 import { Kind } from '../../language/kinds';
 import { parse } from '../../language/parser';
diff --git a/src/execution/__tests__/mutations-test.js b/src/execution/__tests__/mutations-test.js
index c9c51296bf..f15977cc46 100644
--- a/src/execution/__tests__/mutations-test.js
+++ b/src/execution/__tests__/mutations-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import resolveOnNextTick from '../../__testUtils__/resolveOnNextTick';
+import { resolveOnNextTick } from '../../__testUtils__/resolveOnNextTick';
 
 import { parse } from '../../language/parser';
 
diff --git a/src/execution/__tests__/union-interface-test.js b/src/execution/__tests__/union-interface-test.js
index 1d750d273d..b887b7a220 100644
--- a/src/execution/__tests__/union-interface-test.js
+++ b/src/execution/__tests__/union-interface-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import { parse } from '../../language/parser';
 
diff --git a/src/execution/__tests__/variables-test.js b/src/execution/__tests__/variables-test.js
index 9f637dd7ed..c4f968c622 100644
--- a/src/execution/__tests__/variables-test.js
+++ b/src/execution/__tests__/variables-test.js
@@ -1,8 +1,8 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import inspect from '../../jsutils/inspect';
-import invariant from '../../jsutils/invariant';
+import { inspect } from '../../jsutils/inspect';
+import { invariant } from '../../jsutils/invariant';
 
 import { Kind } from '../../language/kinds';
 import { parse } from '../../language/parser';
diff --git a/src/execution/execute.js b/src/execution/execute.js
index c9c2c6a809..66c9bdefd5 100644
--- a/src/execution/execute.js
+++ b/src/execution/execute.js
@@ -1,15 +1,15 @@
 import type { Path } from '../jsutils/Path';
 import type { ObjMap } from '../jsutils/ObjMap';
 import type { PromiseOrValue } from '../jsutils/PromiseOrValue';
-import inspect from '../jsutils/inspect';
-import memoize3 from '../jsutils/memoize3';
-import invariant from '../jsutils/invariant';
-import devAssert from '../jsutils/devAssert';
-import isPromise from '../jsutils/isPromise';
-import isObjectLike from '../jsutils/isObjectLike';
-import isCollection from '../jsutils/isCollection';
-import promiseReduce from '../jsutils/promiseReduce';
-import promiseForObject from '../jsutils/promiseForObject';
+import { inspect } from '../jsutils/inspect';
+import { memoize3 } from '../jsutils/memoize3';
+import { invariant } from '../jsutils/invariant';
+import { devAssert } from '../jsutils/devAssert';
+import { isPromise } from '../jsutils/isPromise';
+import { isObjectLike } from '../jsutils/isObjectLike';
+import { isCollection } from '../jsutils/isCollection';
+import { promiseReduce } from '../jsutils/promiseReduce';
+import { promiseForObject } from '../jsutils/promiseForObject';
 import { addPath, pathToArray } from '../jsutils/Path';
 
 import type { GraphQLFormattedError } from '../error/formatError';
diff --git a/src/execution/values.js b/src/execution/values.js
index 51c0678098..d91633acd4 100644
--- a/src/execution/values.js
+++ b/src/execution/values.js
@@ -1,7 +1,7 @@
 import type { ObjMap } from '../jsutils/ObjMap';
-import keyMap from '../jsutils/keyMap';
-import inspect from '../jsutils/inspect';
-import printPathArray from '../jsutils/printPathArray';
+import { keyMap } from '../jsutils/keyMap';
+import { inspect } from '../jsutils/inspect';
+import { printPathArray } from '../jsutils/printPathArray';
 
 import { GraphQLError } from '../error/GraphQLError';
 
diff --git a/src/graphql.js b/src/graphql.js
index 622be10cd5..3938b157bd 100644
--- a/src/graphql.js
+++ b/src/graphql.js
@@ -1,5 +1,5 @@
 import type { PromiseOrValue } from './jsutils/PromiseOrValue';
-import isPromise from './jsutils/isPromise';
+import { isPromise } from './jsutils/isPromise';
 
 import type { Source } from './language/source';
 import { parse } from './language/parser';
diff --git a/src/jsutils/__tests__/didYouMean-test.js b/src/jsutils/__tests__/didYouMean-test.js
index 70a4ac5237..bc01e18080 100644
--- a/src/jsutils/__tests__/didYouMean-test.js
+++ b/src/jsutils/__tests__/didYouMean-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import didYouMean from '../didYouMean';
+import { didYouMean } from '../didYouMean';
 
 describe('didYouMean', () => {
   it('Does accept an empty list', () => {
diff --git a/src/jsutils/__tests__/identityFunc-test.js b/src/jsutils/__tests__/identityFunc-test.js
index 8c7eff39bc..82a6c914d8 100644
--- a/src/jsutils/__tests__/identityFunc-test.js
+++ b/src/jsutils/__tests__/identityFunc-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import identityFunc from '../identityFunc';
+import { identityFunc } from '../identityFunc';
 
 describe('identityFunc', () => {
   it('returns the first argument it receives', () => {
diff --git a/src/jsutils/__tests__/inspect-test.js b/src/jsutils/__tests__/inspect-test.js
index ba7ca9a86c..26da61e180 100644
--- a/src/jsutils/__tests__/inspect-test.js
+++ b/src/jsutils/__tests__/inspect-test.js
@@ -1,8 +1,8 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import inspect from '../inspect';
-import invariant from '../invariant';
+import { inspect } from '../inspect';
+import { invariant } from '../invariant';
 
 describe('inspect', () => {
   it('undefined', () => {
diff --git a/src/jsutils/__tests__/invariant-test.js b/src/jsutils/__tests__/invariant-test.js
index 97c293596e..2a438b69b3 100644
--- a/src/jsutils/__tests__/invariant-test.js
+++ b/src/jsutils/__tests__/invariant-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import invariant from '../invariant';
+import { invariant } from '../invariant';
 
 describe('invariant', () => {
   it('throws on false conditions', () => {
diff --git a/src/jsutils/__tests__/isAsyncIterable-test.js b/src/jsutils/__tests__/isAsyncIterable-test.js
index 282e6a3474..c997361056 100644
--- a/src/jsutils/__tests__/isAsyncIterable-test.js
+++ b/src/jsutils/__tests__/isAsyncIterable-test.js
@@ -1,8 +1,8 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import identityFunc from '../identityFunc';
-import isAsyncIterable from '../isAsyncIterable';
+import { identityFunc } from '../identityFunc';
+import { isAsyncIterable } from '../isAsyncIterable';
 
 describe('isAsyncIterable', () => {
   it('should return `true` for AsyncIterable', () => {
diff --git a/src/jsutils/__tests__/isCollection-test.js b/src/jsutils/__tests__/isCollection-test.js
index 0277d2eb53..683e56805f 100644
--- a/src/jsutils/__tests__/isCollection-test.js
+++ b/src/jsutils/__tests__/isCollection-test.js
@@ -1,8 +1,8 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import identityFunc from '../identityFunc';
-import isCollection from '../isCollection';
+import { identityFunc } from '../identityFunc';
+import { isCollection } from '../isCollection';
 
 describe('isCollection', () => {
   it('should return `true` for collections', () => {
diff --git a/src/jsutils/__tests__/isObjectLike-test.js b/src/jsutils/__tests__/isObjectLike-test.js
index 724d3ab10c..536ecb5f88 100644
--- a/src/jsutils/__tests__/isObjectLike-test.js
+++ b/src/jsutils/__tests__/isObjectLike-test.js
@@ -1,8 +1,8 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import identityFunc from '../identityFunc';
-import isObjectLike from '../isObjectLike';
+import { identityFunc } from '../identityFunc';
+import { isObjectLike } from '../isObjectLike';
 
 describe('isObjectLike', () => {
   it('should return `true` for objects', () => {
diff --git a/src/jsutils/__tests__/naturalCompare-test.js b/src/jsutils/__tests__/naturalCompare-test.js
index 0aee2cae86..4c5291e579 100644
--- a/src/jsutils/__tests__/naturalCompare-test.js
+++ b/src/jsutils/__tests__/naturalCompare-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import naturalCompare from '../naturalCompare';
+import { naturalCompare } from '../naturalCompare';
 
 describe('naturalCompare', () => {
   it('Handles empty strings', () => {
diff --git a/src/jsutils/__tests__/suggestionList-test.js b/src/jsutils/__tests__/suggestionList-test.js
index 57a2d55c71..82bf6baa37 100644
--- a/src/jsutils/__tests__/suggestionList-test.js
+++ b/src/jsutils/__tests__/suggestionList-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import suggestionList from '../suggestionList';
+import { suggestionList } from '../suggestionList';
 
 function expectSuggestions(input: string, options: Array<string>) {
   return expect(suggestionList(input, options));
diff --git a/src/jsutils/__tests__/toObjMap-test.js b/src/jsutils/__tests__/toObjMap-test.js
index 3f5ab924f5..a0f1a2dba3 100644
--- a/src/jsutils/__tests__/toObjMap-test.js
+++ b/src/jsutils/__tests__/toObjMap-test.js
@@ -2,7 +2,7 @@ import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
 import type { ObjMapLike } from '../ObjMap';
-import toObjMap from '../toObjMap';
+import { toObjMap } from '../toObjMap';
 
 // Workaround to make both ESLint and Flow happy
 const __proto__: string = '__proto__';
diff --git a/src/jsutils/devAssert.js b/src/jsutils/devAssert.js
index da2adfcd00..5fcbc16eb7 100644
--- a/src/jsutils/devAssert.js
+++ b/src/jsutils/devAssert.js
@@ -1,4 +1,4 @@
-export default function devAssert(condition: mixed, message: string): void {
+export function devAssert(condition: mixed, message: string): void {
   const booleanCondition = Boolean(condition);
   // istanbul ignore else (See transformation done in './resources/inlineInvariant.js')
   if (!booleanCondition) {
diff --git a/src/jsutils/didYouMean.js b/src/jsutils/didYouMean.js
index 45e1a93c83..ad1ef1203e 100644
--- a/src/jsutils/didYouMean.js
+++ b/src/jsutils/didYouMean.js
@@ -11,7 +11,7 @@ declare function didYouMean(
 ): string;
 
 // eslint-disable-next-line no-redeclare
-export default function didYouMean(firstArg, secondArg) {
+export function didYouMean(firstArg, secondArg) {
   const [subMessage, suggestionsArg] =
     typeof firstArg === 'string'
       ? [firstArg, secondArg]
diff --git a/src/jsutils/identityFunc.js b/src/jsutils/identityFunc.js
index 94cb7e1534..a249b51c34 100644
--- a/src/jsutils/identityFunc.js
+++ b/src/jsutils/identityFunc.js
@@ -1,6 +1,6 @@
 /**
  * Returns the first argument it receives.
  */
-export default function identityFunc<T>(x: T): T {
+export function identityFunc<T>(x: T): T {
   return x;
 }
diff --git a/src/jsutils/inspect.js b/src/jsutils/inspect.js
index f841f7da8d..d36a535741 100644
--- a/src/jsutils/inspect.js
+++ b/src/jsutils/inspect.js
@@ -6,7 +6,7 @@ const MAX_RECURSIVE_DEPTH = 2;
 /**
  * Used to print values in error messages.
  */
-export default function inspect(value: mixed): string {
+export function inspect(value: mixed): string {
   return formatValue(value, []);
 }
 
diff --git a/src/jsutils/instanceOf.js b/src/jsutils/instanceOf.js
index e55cd13f73..01909fbe6f 100644
--- a/src/jsutils/instanceOf.js
+++ b/src/jsutils/instanceOf.js
@@ -9,6 +9,7 @@ declare function instanceOf(
 
 // See: https://expressjs.com/en/advanced/best-practice-performance.html#set-node_env-to-production
 // See: https://webpack.js.org/guides/production/
+// eslint-disable-next-line import/no-default-export
 export default process.env.NODE_ENV === 'production'
   ? // istanbul ignore next (See: 'https://github.com/graphql/graphql-js/issues/2317')
     // eslint-disable-next-line no-shadow
diff --git a/src/jsutils/invariant.js b/src/jsutils/invariant.js
index 668f6ea426..099ffd801a 100644
--- a/src/jsutils/invariant.js
+++ b/src/jsutils/invariant.js
@@ -1,4 +1,4 @@
-export default function invariant(condition: mixed, message?: string): void {
+export function invariant(condition: mixed, message?: string): void {
   const booleanCondition = Boolean(condition);
   // istanbul ignore else (See transformation done in './resources/inlineInvariant.js')
   if (!booleanCondition) {
diff --git a/src/jsutils/isAsyncIterable.js b/src/jsutils/isAsyncIterable.js
index 604f9e446e..50ca5b0deb 100644
--- a/src/jsutils/isAsyncIterable.js
+++ b/src/jsutils/isAsyncIterable.js
@@ -6,6 +6,6 @@ declare function isAsyncIterable(value: mixed): boolean %checks(value instanceof
   AsyncIterable);
 
 // eslint-disable-next-line no-redeclare
-export default function isAsyncIterable(maybeAsyncIterable) {
+export function isAsyncIterable(maybeAsyncIterable) {
   return typeof maybeAsyncIterable?.[Symbol.asyncIterator] === 'function';
 }
diff --git a/src/jsutils/isCollection.js b/src/jsutils/isCollection.js
index b120bda73d..99128f4fea 100644
--- a/src/jsutils/isCollection.js
+++ b/src/jsutils/isCollection.js
@@ -23,7 +23,7 @@ declare function isCollection(value: mixed): boolean %checks(value instanceof
   Iterable);
 
 // eslint-disable-next-line no-redeclare
-export default function isCollection(obj) {
+export function isCollection(obj) {
   if (obj == null || typeof obj !== 'object') {
     return false;
   }
diff --git a/src/jsutils/isObjectLike.js b/src/jsutils/isObjectLike.js
index a5f9754dd7..9c182ac38d 100644
--- a/src/jsutils/isObjectLike.js
+++ b/src/jsutils/isObjectLike.js
@@ -2,6 +2,6 @@
  * Return true if `value` is object-like. A value is object-like if it's not
  * `null` and has a `typeof` result of "object".
  */
-export default function isObjectLike(value: mixed): boolean %checks {
+export function isObjectLike(value: mixed): boolean %checks {
   return typeof value == 'object' && value !== null;
 }
diff --git a/src/jsutils/isPromise.js b/src/jsutils/isPromise.js
index 4bbb5768e1..41998354a3 100644
--- a/src/jsutils/isPromise.js
+++ b/src/jsutils/isPromise.js
@@ -6,6 +6,6 @@ declare function isPromise(value: mixed): boolean %checks(value instanceof
   Promise);
 
 // eslint-disable-next-line no-redeclare
-export default function isPromise(value) {
+export function isPromise(value) {
   return typeof value?.then === 'function';
 }
diff --git a/src/jsutils/keyMap.js b/src/jsutils/keyMap.js
index eb847d02c9..21c1ec3e3b 100644
--- a/src/jsutils/keyMap.js
+++ b/src/jsutils/keyMap.js
@@ -23,7 +23,7 @@ import type { ObjMap } from './ObjMap';
  *     const jennyEntry = entriesByName['Jenny']
  *
  */
-export default function keyMap<T>(
+export function keyMap<T>(
   list: $ReadOnlyArray<T>,
   keyFn: (item: T) => string,
 ): ObjMap<T> {
diff --git a/src/jsutils/keyValMap.js b/src/jsutils/keyValMap.js
index a91e90b447..1981a520cf 100644
--- a/src/jsutils/keyValMap.js
+++ b/src/jsutils/keyValMap.js
@@ -17,7 +17,7 @@ import type { ObjMap } from './ObjMap';
  *     )
  *
  */
-export default function keyValMap<T, V>(
+export function keyValMap<T, V>(
   list: $ReadOnlyArray<T>,
   keyFn: (item: T) => string,
   valFn: (item: T) => V,
diff --git a/src/jsutils/mapValue.js b/src/jsutils/mapValue.js
index a2b91be2dd..09e6878442 100644
--- a/src/jsutils/mapValue.js
+++ b/src/jsutils/mapValue.js
@@ -1,4 +1,4 @@
-import objectEntries from '../polyfills/objectEntries';
+import { objectEntries } from '../polyfills/objectEntries';
 
 import type { ObjMap } from './ObjMap';
 
@@ -6,7 +6,7 @@ import type { ObjMap } from './ObjMap';
  * Creates an object map with the same keys as `map` and values generated by
  * running each value of `map` thru `fn`.
  */
-export default function mapValue<T, V>(
+export function mapValue<T, V>(
   map: ObjMap<T>,
   fn: (value: T, key: string) => V,
 ): ObjMap<V> {
diff --git a/src/jsutils/memoize3.js b/src/jsutils/memoize3.js
index be73a96fb2..406deddc15 100644
--- a/src/jsutils/memoize3.js
+++ b/src/jsutils/memoize3.js
@@ -1,7 +1,7 @@
 /**
  * Memoizes the provided three-argument function.
  */
-export default function memoize3<
+export function memoize3<
   A1: { ... } | $ReadOnlyArray<mixed>,
   A2: { ... } | $ReadOnlyArray<mixed>,
   A3: { ... } | $ReadOnlyArray<mixed>,
diff --git a/src/jsutils/naturalCompare.js b/src/jsutils/naturalCompare.js
index 5f624b70d8..f6b89be06d 100644
--- a/src/jsutils/naturalCompare.js
+++ b/src/jsutils/naturalCompare.js
@@ -5,7 +5,7 @@
  * See: https://en.wikipedia.org/wiki/Natural_sort_order
  *
  */
-export default function naturalCompare(aStr: string, bStr: string): number {
+export function naturalCompare(aStr: string, bStr: string): number {
   let aIdx = 0;
   let bIdx = 0;
 
diff --git a/src/jsutils/printPathArray.js b/src/jsutils/printPathArray.js
index 34ab13daa0..4e9e773afa 100644
--- a/src/jsutils/printPathArray.js
+++ b/src/jsutils/printPathArray.js
@@ -1,9 +1,7 @@
 /**
  * Build a string describing the path.
  */
-export default function printPathArray(
-  path: $ReadOnlyArray<string | number>,
-): string {
+export function printPathArray(path: $ReadOnlyArray<string | number>): string {
   return path
     .map((key) =>
       typeof key === 'number' ? '[' + key.toString() + ']' : '.' + key,
diff --git a/src/jsutils/promiseForObject.js b/src/jsutils/promiseForObject.js
index bf07e4a3f0..879d732d1f 100644
--- a/src/jsutils/promiseForObject.js
+++ b/src/jsutils/promiseForObject.js
@@ -7,7 +7,7 @@ import type { ObjMap } from './ObjMap';
  * This is akin to bluebird's `Promise.props`, but implemented only using
  * `Promise.all` so it will work with any implementation of ES6 promises.
  */
-export default function promiseForObject<T>(
+export function promiseForObject<T>(
   object: ObjMap<Promise<T>>,
 ): Promise<ObjMap<T>> {
   const keys = Object.keys(object);
diff --git a/src/jsutils/promiseReduce.js b/src/jsutils/promiseReduce.js
index 43d905283e..45a1d7964c 100644
--- a/src/jsutils/promiseReduce.js
+++ b/src/jsutils/promiseReduce.js
@@ -1,6 +1,6 @@
 import type { PromiseOrValue } from './PromiseOrValue';
 
-import isPromise from './isPromise';
+import { isPromise } from './isPromise';
 
 /**
  * Similar to Array.prototype.reduce(), however the reducing callback may return
@@ -9,7 +9,7 @@ import isPromise from './isPromise';
  * If the callback does not return a Promise, then this function will also not
  * return a Promise.
  */
-export default function promiseReduce<T, U>(
+export function promiseReduce<T, U>(
   values: $ReadOnlyArray<T>,
   callback: (U, T) => PromiseOrValue<U>,
   initialValue: PromiseOrValue<U>,
diff --git a/src/jsutils/suggestionList.js b/src/jsutils/suggestionList.js
index 33cc2f1dde..d500648031 100644
--- a/src/jsutils/suggestionList.js
+++ b/src/jsutils/suggestionList.js
@@ -1,10 +1,10 @@
-import naturalCompare from './naturalCompare';
+import { naturalCompare } from './naturalCompare';
 
 /**
  * Given an invalid input string and a list of valid options, returns a filtered
  * list of valid options sorted based on their similarity with the input.
  */
-export default function suggestionList(
+export function suggestionList(
   input: string,
   options: $ReadOnlyArray<string>,
 ): Array<string> {
diff --git a/src/jsutils/toObjMap.js b/src/jsutils/toObjMap.js
index c0dc9e2fdb..5d618793ab 100644
--- a/src/jsutils/toObjMap.js
+++ b/src/jsutils/toObjMap.js
@@ -1,4 +1,4 @@
-import objectEntries from '../polyfills/objectEntries';
+import { objectEntries } from '../polyfills/objectEntries';
 
 import type {
   ObjMap,
@@ -11,7 +11,7 @@ import type {
 declare function toObjMap<T>(obj: ObjMapLike<T>): ObjMap<T>;
 declare function toObjMap<T>(obj: ReadOnlyObjMapLike<T>): ReadOnlyObjMap<T>;
 
-export default function toObjMap(obj) {
+export function toObjMap(obj) {
   /* eslint-enable no-redeclare */
   if (Object.getPrototypeOf(obj) === null) {
     return obj;
diff --git a/src/language/__tests__/blockString-fuzz.js b/src/language/__tests__/blockString-fuzz.js
index 1479aa2aa7..dc79f8aeed 100644
--- a/src/language/__tests__/blockString-fuzz.js
+++ b/src/language/__tests__/blockString-fuzz.js
@@ -1,10 +1,10 @@
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
-import inspectStr from '../../__testUtils__/inspectStr';
-import genFuzzStrings from '../../__testUtils__/genFuzzStrings';
+import { dedent } from '../../__testUtils__/dedent';
+import { inspectStr } from '../../__testUtils__/inspectStr';
+import { genFuzzStrings } from '../../__testUtils__/genFuzzStrings';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import { Lexer } from '../lexer';
 import { Source } from '../source';
diff --git a/src/language/__tests__/lexer-test.js b/src/language/__tests__/lexer-test.js
index 7f6317b5ca..583cd1b301 100644
--- a/src/language/__tests__/lexer-test.js
+++ b/src/language/__tests__/lexer-test.js
@@ -1,9 +1,9 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
-import inspect from '../../jsutils/inspect';
+import { inspect } from '../../jsutils/inspect';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/language/__tests__/parser-test.js b/src/language/__tests__/parser-test.js
index 3a0924680a..3dc1237493 100644
--- a/src/language/__tests__/parser-test.js
+++ b/src/language/__tests__/parser-test.js
@@ -1,17 +1,17 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
-import kitchenSinkQuery from '../../__testUtils__/kitchenSinkQuery';
+import { dedent } from '../../__testUtils__/dedent';
+import { kitchenSinkQuery } from '../../__testUtils__/kitchenSinkQuery';
 
-import inspect from '../../jsutils/inspect';
+import { inspect } from '../../jsutils/inspect';
 
 import { Kind } from '../kinds';
 import { Source } from '../source';
 import { TokenKind } from '../tokenKind';
 import { parse, parseValue, parseType } from '../parser';
 
-import toJSONDeep from './toJSONDeep';
+import { toJSONDeep } from './toJSONDeep';
 
 function expectSyntaxError(text: string) {
   return expect(() => parse(text)).to.throw();
diff --git a/src/language/__tests__/printLocation-test.js b/src/language/__tests__/printLocation-test.js
index 2fbcdcca4e..9911c24669 100644
--- a/src/language/__tests__/printLocation-test.js
+++ b/src/language/__tests__/printLocation-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
 import { Source } from '../source';
 import { printSourceLocation } from '../printLocation';
diff --git a/src/language/__tests__/printer-test.js b/src/language/__tests__/printer-test.js
index 55adc17a78..014e21b623 100644
--- a/src/language/__tests__/printer-test.js
+++ b/src/language/__tests__/printer-test.js
@@ -1,8 +1,8 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
-import kitchenSinkQuery from '../../__testUtils__/kitchenSinkQuery';
+import { dedent } from '../../__testUtils__/dedent';
+import { kitchenSinkQuery } from '../../__testUtils__/kitchenSinkQuery';
 
 import { parse } from '../parser';
 import { print } from '../printer';
diff --git a/src/language/__tests__/schema-parser-test.js b/src/language/__tests__/schema-parser-test.js
index 2e6ffbd745..bb6e92288d 100644
--- a/src/language/__tests__/schema-parser-test.js
+++ b/src/language/__tests__/schema-parser-test.js
@@ -1,12 +1,12 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
-import kitchenSinkSDL from '../../__testUtils__/kitchenSinkSDL';
+import { dedent } from '../../__testUtils__/dedent';
+import { kitchenSinkSDL } from '../../__testUtils__/kitchenSinkSDL';
 
 import { parse } from '../parser';
 
-import toJSONDeep from './toJSONDeep';
+import { toJSONDeep } from './toJSONDeep';
 
 function expectSyntaxError(text: string) {
   return expect(() => parse(text)).to.throw();
diff --git a/src/language/__tests__/schema-printer-test.js b/src/language/__tests__/schema-printer-test.js
index 8a9505939c..2b064f05a2 100644
--- a/src/language/__tests__/schema-printer-test.js
+++ b/src/language/__tests__/schema-printer-test.js
@@ -1,8 +1,8 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
-import kitchenSinkSDL from '../../__testUtils__/kitchenSinkSDL';
+import { dedent } from '../../__testUtils__/dedent';
+import { kitchenSinkSDL } from '../../__testUtils__/kitchenSinkSDL';
 
 import { parse } from '../parser';
 import { print } from '../printer';
diff --git a/src/language/__tests__/toJSONDeep.js b/src/language/__tests__/toJSONDeep.js
index 3c3fae57f3..71d543a068 100644
--- a/src/language/__tests__/toJSONDeep.js
+++ b/src/language/__tests__/toJSONDeep.js
@@ -1,10 +1,10 @@
-import isObjectLike from '../../jsutils/isObjectLike';
+import { isObjectLike } from '../../jsutils/isObjectLike';
 
 /**
  * Deeply transforms an arbitrary value to a JSON-safe value by calling toJSON
  * on any nested value which defines it.
  */
-export default function toJSONDeep(value: mixed): mixed {
+export function toJSONDeep(value: mixed): mixed {
   if (!isObjectLike(value)) {
     return value;
   }
diff --git a/src/language/__tests__/visitor-test.js b/src/language/__tests__/visitor-test.js
index 1dfce965b8..5d6473400a 100644
--- a/src/language/__tests__/visitor-test.js
+++ b/src/language/__tests__/visitor-test.js
@@ -1,9 +1,9 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import kitchenSinkQuery from '../../__testUtils__/kitchenSinkQuery';
+import { kitchenSinkQuery } from '../../__testUtils__/kitchenSinkQuery';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import type { ASTNode } from '../ast';
 import { Kind } from '../kinds';
diff --git a/src/language/experimentalOnlineParser/grammar.d.ts b/src/language/experimentalOnlineParser/grammar.d.ts
index 6e71a66a72..c27fdc1d8f 100644
--- a/src/language/experimentalOnlineParser/grammar.d.ts
+++ b/src/language/experimentalOnlineParser/grammar.d.ts
@@ -77,7 +77,7 @@ export interface GraphQLGrammarPeekConstraintCondition {
   end?: boolean;
 }
 
-const grammar: GraphQLGrammarType = {
+export const grammar: GraphQLGrammarType = {
   Name: { token: 'Name' },
   String: { token: 'String' },
   BlockString: { token: 'BlockString' },
@@ -1002,5 +1002,3 @@ const grammar: GraphQLGrammarType = {
     tokenName: 'EnumValue',
   },
 };
-
-export default grammar;
diff --git a/src/language/experimentalOnlineParser/grammar.js b/src/language/experimentalOnlineParser/grammar.js
index 0ab7788534..ff1b7018af 100644
--- a/src/language/experimentalOnlineParser/grammar.js
+++ b/src/language/experimentalOnlineParser/grammar.js
@@ -69,7 +69,7 @@ export interface GraphQLGrammarPeekConstraintCondition {
   end?: boolean;
 }
 
-const grammar: GraphQLGrammarType = ({
+export const grammar: GraphQLGrammarType = ({
   Name: { token: 'Name' },
   String: { token: 'String' },
   BlockString: { token: 'BlockString' },
@@ -995,5 +995,3 @@ const grammar: GraphQLGrammarType = ({
   },
   // FIXME: enforce proper typing
 }: any);
-
-export default grammar;
diff --git a/src/language/experimentalOnlineParser/onlineParser.js b/src/language/experimentalOnlineParser/onlineParser.js
index f296d1c8e2..b43a4f5124 100644
--- a/src/language/experimentalOnlineParser/onlineParser.js
+++ b/src/language/experimentalOnlineParser/onlineParser.js
@@ -1,7 +1,7 @@
 import { Lexer } from '../lexer';
 import { Source } from '../source';
 
-import GraphQLGrammar from './grammar';
+import { grammar } from './grammar';
 import type {
   GraphQLGrammarRule,
   GraphQLGrammarRuleName,
@@ -128,7 +128,7 @@ export class OnlineParser {
           name: 'Document',
           state: 'Document',
           kind: 'ListOfTypeConstraint',
-          ...GraphQLGrammar.Document,
+          ...grammar.Document,
           expanded: false,
           depth: 1,
           step: 1,
@@ -276,7 +276,7 @@ export class OnlineParser {
 
   _parseListOfTypeConstraint(rule: ListOfTypeOnlineParserRule): Token {
     this._pushRule(
-      GraphQLGrammar[rule.listOfType],
+      grammar[rule.listOfType],
       rule.depth + 1,
       rule.listOfType,
       1,
@@ -316,7 +316,7 @@ export class OnlineParser {
 
       let { ifCondition } = constraint;
       if (typeof ifCondition === 'string') {
-        ifCondition = GraphQLGrammar[ifCondition];
+        ifCondition = grammar[ifCondition];
       }
 
       let token = this._lookAhead();
@@ -552,7 +552,7 @@ export class OnlineParser {
       case RuleKind.RULE_NAME:
         rule = (rule: GraphQLGrammarRuleName);
         this._pushRule(
-          GraphQLGrammar[rule],
+          grammar[rule],
           depth,
           (typeof name === 'string' ? name : undefined) || rule,
           step,
diff --git a/src/language/source.js b/src/language/source.js
index ae08ee8e9a..082c872005 100644
--- a/src/language/source.js
+++ b/src/language/source.js
@@ -1,5 +1,5 @@
-import inspect from '../jsutils/inspect';
-import devAssert from '../jsutils/devAssert';
+import { inspect } from '../jsutils/inspect';
+import { devAssert } from '../jsutils/devAssert';
 import instanceOf from '../jsutils/instanceOf';
 
 type Location = {|
diff --git a/src/language/visitor.js b/src/language/visitor.js
index 5e367ce4a9..ed1db5b720 100644
--- a/src/language/visitor.js
+++ b/src/language/visitor.js
@@ -1,4 +1,4 @@
-import inspect from '../jsutils/inspect';
+import { inspect } from '../jsutils/inspect';
 
 import type { ASTNode, ASTKindToNode } from './ast';
 import { isNode } from './ast';
diff --git a/src/polyfills/objectEntries.js b/src/polyfills/objectEntries.js
index 30e5585272..907ac00537 100644
--- a/src/polyfills/objectEntries.js
+++ b/src/polyfills/objectEntries.js
@@ -4,7 +4,5 @@ declare function objectEntries<T>(obj: ObjMap<T>): Array<[string, T]>;
 
 /* eslint-disable no-redeclare */
 // $FlowFixMe[name-already-bound] workaround for: https://github.com/facebook/flow/issues/4441
-const objectEntries =
+export const objectEntries =
   Object.entries || ((obj) => Object.keys(obj).map((key) => [key, obj[key]]));
-
-export default objectEntries;
diff --git a/src/polyfills/objectValues.js b/src/polyfills/objectValues.js
index 943362a640..bcc363a24f 100644
--- a/src/polyfills/objectValues.js
+++ b/src/polyfills/objectValues.js
@@ -4,6 +4,5 @@ declare function objectValues<T>(obj: ObjMap<T>): Array<T>;
 
 /* eslint-disable no-redeclare */
 // $FlowFixMe[name-already-bound] workaround for: https://github.com/facebook/flow/issues/4441
-const objectValues =
+export const objectValues =
   Object.values || ((obj) => Object.keys(obj).map((key) => obj[key]));
-export default objectValues;
diff --git a/src/subscription/__tests__/mapAsyncIterator-test.js b/src/subscription/__tests__/mapAsyncIterator-test.js
index 4af866f20a..3db45226ae 100644
--- a/src/subscription/__tests__/mapAsyncIterator-test.js
+++ b/src/subscription/__tests__/mapAsyncIterator-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import mapAsyncIterator from '../mapAsyncIterator';
+import { mapAsyncIterator } from '../mapAsyncIterator';
 
 describe('mapAsyncIterator', () => {
   it('maps over async generator', async () => {
diff --git a/src/subscription/__tests__/simplePubSub-test.js b/src/subscription/__tests__/simplePubSub-test.js
index d92339687b..18f596b898 100644
--- a/src/subscription/__tests__/simplePubSub-test.js
+++ b/src/subscription/__tests__/simplePubSub-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import SimplePubSub from './simplePubSub';
+import { SimplePubSub } from './simplePubSub';
 
 describe('SimplePubSub', () => {
   it('subscribe async-iterator mock', async () => {
diff --git a/src/subscription/__tests__/simplePubSub.js b/src/subscription/__tests__/simplePubSub.js
index e12c93d0b9..c7f9639419 100644
--- a/src/subscription/__tests__/simplePubSub.js
+++ b/src/subscription/__tests__/simplePubSub.js
@@ -2,7 +2,7 @@
  * Create an AsyncIterator from an EventEmitter. Useful for mocking a
  * PubSub system for tests.
  */
-export default class SimplePubSub<T> {
+export class SimplePubSub<T> {
   _subscribers: Set<(T) => void>;
 
   constructor() {
diff --git a/src/subscription/__tests__/subscribe-test.js b/src/subscription/__tests__/subscribe-test.js
index c0cc0ce851..e1feb4b19c 100644
--- a/src/subscription/__tests__/subscribe-test.js
+++ b/src/subscription/__tests__/subscribe-test.js
@@ -1,10 +1,10 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import resolveOnNextTick from '../../__testUtils__/resolveOnNextTick';
+import { resolveOnNextTick } from '../../__testUtils__/resolveOnNextTick';
 
-import invariant from '../../jsutils/invariant';
-import isAsyncIterable from '../../jsutils/isAsyncIterable';
+import { invariant } from '../../jsutils/invariant';
+import { isAsyncIterable } from '../../jsutils/isAsyncIterable';
 
 import type { DocumentNode } from '../../language/ast';
 import { parse } from '../../language/parser';
@@ -17,7 +17,7 @@ import { GraphQLInt, GraphQLString, GraphQLBoolean } from '../../type/scalars';
 
 import { createSourceEventStream, subscribe } from '../subscribe';
 
-import SimplePubSub from './simplePubSub';
+import { SimplePubSub } from './simplePubSub';
 
 type Email = {|
   from: string,
diff --git a/src/subscription/mapAsyncIterator.d.ts b/src/subscription/mapAsyncIterator.d.ts
index 22e8a34ace..ecf2e51cd3 100644
--- a/src/subscription/mapAsyncIterator.d.ts
+++ b/src/subscription/mapAsyncIterator.d.ts
@@ -4,7 +4,7 @@ import { PromiseOrValue } from '../jsutils/PromiseOrValue';
  * Given an AsyncIterable and a callback function, return an AsyncIterator
  * which produces values mapped via calling the callback function.
  */
-export default function mapAsyncIterator<T, U>(
+export function mapAsyncIterator<T, U>(
   iterable: AsyncIterable<T>,
   callback: (arg: T) => PromiseOrValue<U>,
   rejectCallback?: (arg: any) => PromiseOrValue<U>,
diff --git a/src/subscription/mapAsyncIterator.js b/src/subscription/mapAsyncIterator.js
index 5a64de54f1..75c8ff5a85 100644
--- a/src/subscription/mapAsyncIterator.js
+++ b/src/subscription/mapAsyncIterator.js
@@ -4,7 +4,7 @@ import type { PromiseOrValue } from '../jsutils/PromiseOrValue';
  * Given an AsyncIterable and a callback function, return an AsyncIterator
  * which produces values mapped via calling the callback function.
  */
-export default function mapAsyncIterator<T, U>(
+export function mapAsyncIterator<T, U>(
   iterable: AsyncIterable<T> | AsyncGenerator<T, void, void>,
   callback: (T) => PromiseOrValue<U>,
   rejectCallback?: (any) => PromiseOrValue<U>,
diff --git a/src/subscription/subscribe.js b/src/subscription/subscribe.js
index 4ff1b9d72a..33e375cc4c 100644
--- a/src/subscription/subscribe.js
+++ b/src/subscription/subscribe.js
@@ -1,5 +1,5 @@
-import inspect from '../jsutils/inspect';
-import isAsyncIterable from '../jsutils/isAsyncIterable';
+import { inspect } from '../jsutils/inspect';
+import { isAsyncIterable } from '../jsutils/isAsyncIterable';
 import { addPath, pathToArray } from '../jsutils/Path';
 
 import { GraphQLError } from '../error/GraphQLError';
@@ -23,7 +23,7 @@ import type { GraphQLFieldResolver } from '../type/definition';
 
 import { getOperationRootType } from '../utilities/getOperationRootType';
 
-import mapAsyncIterator from './mapAsyncIterator';
+import { mapAsyncIterator } from './mapAsyncIterator';
 
 export type SubscriptionArgs = {|
   schema: GraphQLSchema,
diff --git a/src/type/__tests__/definition-test.js b/src/type/__tests__/definition-test.js
index 65b176d150..faefd625d6 100644
--- a/src/type/__tests__/definition-test.js
+++ b/src/type/__tests__/definition-test.js
@@ -1,8 +1,8 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import inspect from '../../jsutils/inspect';
-import identityFunc from '../../jsutils/identityFunc';
+import { inspect } from '../../jsutils/inspect';
+import { identityFunc } from '../../jsutils/identityFunc';
 
 import { parseValue } from '../../language/parser';
 
diff --git a/src/type/__tests__/extensions-test.js b/src/type/__tests__/extensions-test.js
index 76dd0ee233..de218c3db3 100644
--- a/src/type/__tests__/extensions-test.js
+++ b/src/type/__tests__/extensions-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import { GraphQLSchema } from '../schema';
 import { GraphQLDirective } from '../directives';
diff --git a/src/type/__tests__/introspection-test.js b/src/type/__tests__/introspection-test.js
index 478cc9bd18..ee1b4e6e38 100644
--- a/src/type/__tests__/introspection-test.js
+++ b/src/type/__tests__/introspection-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import { buildSchema } from '../../utilities/buildASTSchema';
 import { getIntrospectionQuery } from '../../utilities/getIntrospectionQuery';
diff --git a/src/type/__tests__/schema-test.js b/src/type/__tests__/schema-test.js
index 783955c1f6..321e14521f 100644
--- a/src/type/__tests__/schema-test.js
+++ b/src/type/__tests__/schema-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
 import { printSchema } from '../../utilities/printSchema';
 
diff --git a/src/type/__tests__/validation-test.js b/src/type/__tests__/validation-test.js
index a3e35443da..34939afe93 100644
--- a/src/type/__tests__/validation-test.js
+++ b/src/type/__tests__/validation-test.js
@@ -1,9 +1,9 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
-import inspect from '../../jsutils/inspect';
+import { inspect } from '../../jsutils/inspect';
 
 import { parse } from '../../language/parser';
 
diff --git a/src/type/definition.js b/src/type/definition.js
index 4ab794fc36..3bdfa16b84 100644
--- a/src/type/definition.js
+++ b/src/type/definition.js
@@ -1,4 +1,4 @@
-import objectEntries from '../polyfills/objectEntries';
+import { objectEntries } from '../polyfills/objectEntries';
 
 import type { Path } from '../jsutils/Path';
 import type { PromiseOrValue } from '../jsutils/PromiseOrValue';
@@ -7,17 +7,17 @@ import type {
   ReadOnlyObjMap,
   ReadOnlyObjMapLike,
 } from '../jsutils/ObjMap';
-import inspect from '../jsutils/inspect';
-import keyMap from '../jsutils/keyMap';
-import mapValue from '../jsutils/mapValue';
-import toObjMap from '../jsutils/toObjMap';
-import devAssert from '../jsutils/devAssert';
-import keyValMap from '../jsutils/keyValMap';
+import { inspect } from '../jsutils/inspect';
+import { keyMap } from '../jsutils/keyMap';
+import { mapValue } from '../jsutils/mapValue';
+import { toObjMap } from '../jsutils/toObjMap';
+import { devAssert } from '../jsutils/devAssert';
+import { keyValMap } from '../jsutils/keyValMap';
 import instanceOf from '../jsutils/instanceOf';
-import didYouMean from '../jsutils/didYouMean';
-import isObjectLike from '../jsutils/isObjectLike';
-import identityFunc from '../jsutils/identityFunc';
-import suggestionList from '../jsutils/suggestionList';
+import { didYouMean } from '../jsutils/didYouMean';
+import { isObjectLike } from '../jsutils/isObjectLike';
+import { identityFunc } from '../jsutils/identityFunc';
+import { suggestionList } from '../jsutils/suggestionList';
 
 import { GraphQLError } from '../error/GraphQLError';
 
diff --git a/src/type/directives.js b/src/type/directives.js
index c92cc10641..af7a3ad204 100644
--- a/src/type/directives.js
+++ b/src/type/directives.js
@@ -1,11 +1,11 @@
-import objectEntries from '../polyfills/objectEntries';
+import { objectEntries } from '../polyfills/objectEntries';
 
 import type { ReadOnlyObjMap, ReadOnlyObjMapLike } from '../jsutils/ObjMap';
-import inspect from '../jsutils/inspect';
-import toObjMap from '../jsutils/toObjMap';
-import devAssert from '../jsutils/devAssert';
+import { inspect } from '../jsutils/inspect';
+import { toObjMap } from '../jsutils/toObjMap';
+import { devAssert } from '../jsutils/devAssert';
 import instanceOf from '../jsutils/instanceOf';
-import isObjectLike from '../jsutils/isObjectLike';
+import { isObjectLike } from '../jsutils/isObjectLike';
 
 import type { DirectiveDefinitionNode } from '../language/ast';
 import type { DirectiveLocationEnum } from '../language/directiveLocation';
diff --git a/src/type/introspection.js b/src/type/introspection.js
index 4963bd9674..bbc5554d5a 100644
--- a/src/type/introspection.js
+++ b/src/type/introspection.js
@@ -1,7 +1,7 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
-import inspect from '../jsutils/inspect';
-import invariant from '../jsutils/invariant';
+import { inspect } from '../jsutils/inspect';
+import { invariant } from '../jsutils/invariant';
 
 import { print } from '../language/printer';
 import { DirectiveLocation } from '../language/directiveLocation';
diff --git a/src/type/scalars.js b/src/type/scalars.js
index e02d2e5c6c..f737cc2cff 100644
--- a/src/type/scalars.js
+++ b/src/type/scalars.js
@@ -1,5 +1,5 @@
-import inspect from '../jsutils/inspect';
-import isObjectLike from '../jsutils/isObjectLike';
+import { inspect } from '../jsutils/inspect';
+import { isObjectLike } from '../jsutils/isObjectLike';
 
 import { Kind } from '../language/kinds';
 import { print } from '../language/printer';
diff --git a/src/type/schema.js b/src/type/schema.js
index efb66462c9..c7f1cc6608 100644
--- a/src/type/schema.js
+++ b/src/type/schema.js
@@ -1,15 +1,15 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
 import type {
   ObjMap,
   ReadOnlyObjMap,
   ReadOnlyObjMapLike,
 } from '../jsutils/ObjMap';
-import inspect from '../jsutils/inspect';
-import toObjMap from '../jsutils/toObjMap';
-import devAssert from '../jsutils/devAssert';
+import { inspect } from '../jsutils/inspect';
+import { toObjMap } from '../jsutils/toObjMap';
+import { devAssert } from '../jsutils/devAssert';
 import instanceOf from '../jsutils/instanceOf';
-import isObjectLike from '../jsutils/isObjectLike';
+import { isObjectLike } from '../jsutils/isObjectLike';
 
 import type { GraphQLError } from '../error/GraphQLError';
 
diff --git a/src/type/validate.js b/src/type/validate.js
index f0075e2b9e..800a54860e 100644
--- a/src/type/validate.js
+++ b/src/type/validate.js
@@ -1,6 +1,6 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
-import inspect from '../jsutils/inspect';
+import { inspect } from '../jsutils/inspect';
 
 import { GraphQLError } from '../error/GraphQLError';
 import { locatedError } from '../error/locatedError';
diff --git a/src/utilities/__tests__/TypeInfo-test.js b/src/utilities/__tests__/TypeInfo-test.js
index 73ca3d5090..9f8349449b 100644
--- a/src/utilities/__tests__/TypeInfo-test.js
+++ b/src/utilities/__tests__/TypeInfo-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import { parse, parseValue } from '../../language/parser';
 import { print } from '../../language/printer';
diff --git a/src/utilities/__tests__/buildASTSchema-test.js b/src/utilities/__tests__/buildASTSchema-test.js
index cb1794bd7a..8e570ea364 100644
--- a/src/utilities/__tests__/buildASTSchema-test.js
+++ b/src/utilities/__tests__/buildASTSchema-test.js
@@ -1,9 +1,9 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import type { ASTNode } from '../../language/ast';
 import { Kind } from '../../language/kinds';
diff --git a/src/utilities/__tests__/buildClientSchema-test.js b/src/utilities/__tests__/buildClientSchema-test.js
index b43dca09b3..28dbc33272 100644
--- a/src/utilities/__tests__/buildClientSchema-test.js
+++ b/src/utilities/__tests__/buildClientSchema-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
 import { graphqlSync } from '../../graphql';
 
diff --git a/src/utilities/__tests__/coerceInputValue-test.js b/src/utilities/__tests__/coerceInputValue-test.js
index 05f7ca12c2..07d1514200 100644
--- a/src/utilities/__tests__/coerceInputValue-test.js
+++ b/src/utilities/__tests__/coerceInputValue-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import type { GraphQLInputType } from '../../type/definition';
 import { GraphQLInt } from '../../type/scalars';
diff --git a/src/utilities/__tests__/concatAST-test.js b/src/utilities/__tests__/concatAST-test.js
index 089b36e9dd..622abd6b38 100644
--- a/src/utilities/__tests__/concatAST-test.js
+++ b/src/utilities/__tests__/concatAST-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
 import { parse } from '../../language/parser';
 import { print } from '../../language/printer';
diff --git a/src/utilities/__tests__/extendSchema-test.js b/src/utilities/__tests__/extendSchema-test.js
index 64ac885c4b..88c9829183 100644
--- a/src/utilities/__tests__/extendSchema-test.js
+++ b/src/utilities/__tests__/extendSchema-test.js
@@ -1,9 +1,9 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import type { ASTNode } from '../../language/ast';
 import { Kind } from '../../language/kinds';
diff --git a/src/utilities/__tests__/getOperationRootType-test.js b/src/utilities/__tests__/getOperationRootType-test.js
index 8ebdcdfd8b..627b0efb86 100644
--- a/src/utilities/__tests__/getOperationRootType-test.js
+++ b/src/utilities/__tests__/getOperationRootType-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import type { DocumentNode } from '../../language/ast';
 import { Kind } from '../../language/kinds';
diff --git a/src/utilities/__tests__/introspectionFromSchema-test.js b/src/utilities/__tests__/introspectionFromSchema-test.js
index 4afbbeb855..14e72ed098 100644
--- a/src/utilities/__tests__/introspectionFromSchema-test.js
+++ b/src/utilities/__tests__/introspectionFromSchema-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
 import { GraphQLSchema } from '../../type/schema';
 import { GraphQLString } from '../../type/scalars';
diff --git a/src/utilities/__tests__/lexicographicSortSchema-test.js b/src/utilities/__tests__/lexicographicSortSchema-test.js
index b885733c23..f63ee9460c 100644
--- a/src/utilities/__tests__/lexicographicSortSchema-test.js
+++ b/src/utilities/__tests__/lexicographicSortSchema-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
 import { printSchema } from '../printSchema';
 import { buildSchema } from '../buildASTSchema';
diff --git a/src/utilities/__tests__/printSchema-test.js b/src/utilities/__tests__/printSchema-test.js
index 2bedc1478f..cdd4ca574c 100644
--- a/src/utilities/__tests__/printSchema-test.js
+++ b/src/utilities/__tests__/printSchema-test.js
@@ -1,7 +1,7 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
 import { DirectiveLocation } from '../../language/directiveLocation';
 
diff --git a/src/utilities/__tests__/separateOperations-test.js b/src/utilities/__tests__/separateOperations-test.js
index 1e336a6ad5..3ebe1a5f57 100644
--- a/src/utilities/__tests__/separateOperations-test.js
+++ b/src/utilities/__tests__/separateOperations-test.js
@@ -1,9 +1,9 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
+import { dedent } from '../../__testUtils__/dedent';
 
-import mapValue from '../../jsutils/mapValue';
+import { mapValue } from '../../jsutils/mapValue';
 
 import { parse } from '../../language/parser';
 import { print } from '../../language/printer';
diff --git a/src/utilities/__tests__/stripIgnoredCharacters-fuzz.js b/src/utilities/__tests__/stripIgnoredCharacters-fuzz.js
index 34a2c9a7a5..38a5a12b6e 100644
--- a/src/utilities/__tests__/stripIgnoredCharacters-fuzz.js
+++ b/src/utilities/__tests__/stripIgnoredCharacters-fuzz.js
@@ -1,10 +1,10 @@
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
-import inspectStr from '../../__testUtils__/inspectStr';
-import genFuzzStrings from '../../__testUtils__/genFuzzStrings';
+import { dedent } from '../../__testUtils__/dedent';
+import { inspectStr } from '../../__testUtils__/inspectStr';
+import { genFuzzStrings } from '../../__testUtils__/genFuzzStrings';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import { Lexer } from '../../language/lexer';
 import { Source } from '../../language/source';
diff --git a/src/utilities/__tests__/stripIgnoredCharacters-test.js b/src/utilities/__tests__/stripIgnoredCharacters-test.js
index fdc7d907d6..e73fa56362 100644
--- a/src/utilities/__tests__/stripIgnoredCharacters-test.js
+++ b/src/utilities/__tests__/stripIgnoredCharacters-test.js
@@ -1,12 +1,12 @@
 import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
-import dedent from '../../__testUtils__/dedent';
-import inspectStr from '../../__testUtils__/inspectStr';
-import kitchenSinkSDL from '../../__testUtils__/kitchenSinkSDL';
-import kitchenSinkQuery from '../../__testUtils__/kitchenSinkQuery';
+import { dedent } from '../../__testUtils__/dedent';
+import { inspectStr } from '../../__testUtils__/inspectStr';
+import { kitchenSinkSDL } from '../../__testUtils__/kitchenSinkSDL';
+import { kitchenSinkQuery } from '../../__testUtils__/kitchenSinkQuery';
 
-import invariant from '../../jsutils/invariant';
+import { invariant } from '../../jsutils/invariant';
 
 import { Lexer } from '../../language/lexer';
 import { parse } from '../../language/parser';
diff --git a/src/utilities/__tests__/valueFromAST-test.js b/src/utilities/__tests__/valueFromAST-test.js
index f4dc325206..b1436edf97 100644
--- a/src/utilities/__tests__/valueFromAST-test.js
+++ b/src/utilities/__tests__/valueFromAST-test.js
@@ -2,8 +2,8 @@ import { expect } from 'chai';
 import { describe, it } from 'mocha';
 
 import type { ObjMap } from '../../jsutils/ObjMap';
-import invariant from '../../jsutils/invariant';
-import identityFunc from '../../jsutils/identityFunc';
+import { invariant } from '../../jsutils/invariant';
+import { identityFunc } from '../../jsutils/identityFunc';
 
 import { parseValue } from '../../language/parser';
 
diff --git a/src/utilities/assertValidName.js b/src/utilities/assertValidName.js
index b919b61be7..3f294da39d 100644
--- a/src/utilities/assertValidName.js
+++ b/src/utilities/assertValidName.js
@@ -1,4 +1,4 @@
-import devAssert from '../jsutils/devAssert';
+import { devAssert } from '../jsutils/devAssert';
 
 import { GraphQLError } from '../error/GraphQLError';
 
diff --git a/src/utilities/astFromValue.js b/src/utilities/astFromValue.js
index da5ad95051..e9bfbb2668 100644
--- a/src/utilities/astFromValue.js
+++ b/src/utilities/astFromValue.js
@@ -1,9 +1,9 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
-import inspect from '../jsutils/inspect';
-import invariant from '../jsutils/invariant';
-import isObjectLike from '../jsutils/isObjectLike';
-import isCollection from '../jsutils/isCollection';
+import { inspect } from '../jsutils/inspect';
+import { invariant } from '../jsutils/invariant';
+import { isObjectLike } from '../jsutils/isObjectLike';
+import { isCollection } from '../jsutils/isCollection';
 
 import type { ValueNode } from '../language/ast';
 import { Kind } from '../language/kinds';
diff --git a/src/utilities/buildASTSchema.js b/src/utilities/buildASTSchema.js
index 7f72cb6114..420da7582a 100644
--- a/src/utilities/buildASTSchema.js
+++ b/src/utilities/buildASTSchema.js
@@ -1,4 +1,4 @@
-import devAssert from '../jsutils/devAssert';
+import { devAssert } from '../jsutils/devAssert';
 
 import type { Source } from '../language/source';
 import type { DocumentNode } from '../language/ast';
diff --git a/src/utilities/buildClientSchema.js b/src/utilities/buildClientSchema.js
index bdf4420001..d799e1eb6e 100644
--- a/src/utilities/buildClientSchema.js
+++ b/src/utilities/buildClientSchema.js
@@ -1,9 +1,9 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
-import inspect from '../jsutils/inspect';
-import devAssert from '../jsutils/devAssert';
-import keyValMap from '../jsutils/keyValMap';
-import isObjectLike from '../jsutils/isObjectLike';
+import { inspect } from '../jsutils/inspect';
+import { devAssert } from '../jsutils/devAssert';
+import { keyValMap } from '../jsutils/keyValMap';
+import { isObjectLike } from '../jsutils/isObjectLike';
 
 import { parseValue } from '../language/parser';
 
diff --git a/src/utilities/coerceInputValue.js b/src/utilities/coerceInputValue.js
index 9bb1195b09..37fa1b475a 100644
--- a/src/utilities/coerceInputValue.js
+++ b/src/utilities/coerceInputValue.js
@@ -1,13 +1,13 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
 import type { Path } from '../jsutils/Path';
-import inspect from '../jsutils/inspect';
-import invariant from '../jsutils/invariant';
-import didYouMean from '../jsutils/didYouMean';
-import isObjectLike from '../jsutils/isObjectLike';
-import isCollection from '../jsutils/isCollection';
-import suggestionList from '../jsutils/suggestionList';
-import printPathArray from '../jsutils/printPathArray';
+import { inspect } from '../jsutils/inspect';
+import { invariant } from '../jsutils/invariant';
+import { didYouMean } from '../jsutils/didYouMean';
+import { isObjectLike } from '../jsutils/isObjectLike';
+import { isCollection } from '../jsutils/isCollection';
+import { suggestionList } from '../jsutils/suggestionList';
+import { printPathArray } from '../jsutils/printPathArray';
 import { addPath, pathToArray } from '../jsutils/Path';
 
 import { GraphQLError } from '../error/GraphQLError';
diff --git a/src/utilities/extendSchema.js b/src/utilities/extendSchema.js
index 5bdf49e03b..0d197490bb 100644
--- a/src/utilities/extendSchema.js
+++ b/src/utilities/extendSchema.js
@@ -1,10 +1,10 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
-import keyMap from '../jsutils/keyMap';
-import inspect from '../jsutils/inspect';
-import mapValue from '../jsutils/mapValue';
-import invariant from '../jsutils/invariant';
-import devAssert from '../jsutils/devAssert';
+import { keyMap } from '../jsutils/keyMap';
+import { inspect } from '../jsutils/inspect';
+import { mapValue } from '../jsutils/mapValue';
+import { invariant } from '../jsutils/invariant';
+import { devAssert } from '../jsutils/devAssert';
 
 import type { DirectiveLocationEnum } from '../language/directiveLocation';
 import type {
diff --git a/src/utilities/findBreakingChanges.js b/src/utilities/findBreakingChanges.js
index 9f74a2d95c..9000cc63c3 100644
--- a/src/utilities/findBreakingChanges.js
+++ b/src/utilities/findBreakingChanges.js
@@ -1,9 +1,9 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
-import keyMap from '../jsutils/keyMap';
-import inspect from '../jsutils/inspect';
-import invariant from '../jsutils/invariant';
-import naturalCompare from '../jsutils/naturalCompare';
+import { keyMap } from '../jsutils/keyMap';
+import { inspect } from '../jsutils/inspect';
+import { invariant } from '../jsutils/invariant';
+import { naturalCompare } from '../jsutils/naturalCompare';
 
 import { print } from '../language/printer';
 import { visit } from '../language/visitor';
diff --git a/src/utilities/introspectionFromSchema.js b/src/utilities/introspectionFromSchema.js
index 45d2c042c5..782faca0a0 100644
--- a/src/utilities/introspectionFromSchema.js
+++ b/src/utilities/introspectionFromSchema.js
@@ -1,4 +1,4 @@
-import invariant from '../jsutils/invariant';
+import { invariant } from '../jsutils/invariant';
 
 import { parse } from '../language/parser';
 
diff --git a/src/utilities/lexicographicSortSchema.js b/src/utilities/lexicographicSortSchema.js
index 3c727c70f0..8dd6acd5d4 100644
--- a/src/utilities/lexicographicSortSchema.js
+++ b/src/utilities/lexicographicSortSchema.js
@@ -1,10 +1,10 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
 import type { ObjMap } from '../jsutils/ObjMap';
-import inspect from '../jsutils/inspect';
-import invariant from '../jsutils/invariant';
-import keyValMap from '../jsutils/keyValMap';
-import naturalCompare from '../jsutils/naturalCompare';
+import { inspect } from '../jsutils/inspect';
+import { invariant } from '../jsutils/invariant';
+import { keyValMap } from '../jsutils/keyValMap';
+import { naturalCompare } from '../jsutils/naturalCompare';
 
 import type {
   GraphQLType,
diff --git a/src/utilities/printSchema.js b/src/utilities/printSchema.js
index 2d02ef6fd1..205f80f5ca 100644
--- a/src/utilities/printSchema.js
+++ b/src/utilities/printSchema.js
@@ -1,7 +1,7 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
-import inspect from '../jsutils/inspect';
-import invariant from '../jsutils/invariant';
+import { inspect } from '../jsutils/inspect';
+import { invariant } from '../jsutils/invariant';
 
 import { print } from '../language/printer';
 import { printBlockString } from '../language/blockString';
diff --git a/src/utilities/typeFromAST.js b/src/utilities/typeFromAST.js
index 6903c5287a..0337e98420 100644
--- a/src/utilities/typeFromAST.js
+++ b/src/utilities/typeFromAST.js
@@ -1,5 +1,5 @@
-import inspect from '../jsutils/inspect';
-import invariant from '../jsutils/invariant';
+import { inspect } from '../jsutils/inspect';
+import { invariant } from '../jsutils/invariant';
 
 import type {
   NamedTypeNode,
diff --git a/src/utilities/valueFromAST.js b/src/utilities/valueFromAST.js
index 7afed42282..abf1e6526b 100644
--- a/src/utilities/valueFromAST.js
+++ b/src/utilities/valueFromAST.js
@@ -1,9 +1,9 @@
-import objectValues from '../polyfills/objectValues';
+import { objectValues } from '../polyfills/objectValues';
 
 import type { ObjMap } from '../jsutils/ObjMap';
-import keyMap from '../jsutils/keyMap';
-import inspect from '../jsutils/inspect';
-import invariant from '../jsutils/invariant';
+import { keyMap } from '../jsutils/keyMap';
+import { inspect } from '../jsutils/inspect';
+import { invariant } from '../jsutils/invariant';
 
 import type { ValueNode } from '../language/ast';
 import { Kind } from '../language/kinds';
diff --git a/src/utilities/valueFromASTUntyped.js b/src/utilities/valueFromASTUntyped.js
index 3b70329bda..05f5db71b2 100644
--- a/src/utilities/valueFromASTUntyped.js
+++ b/src/utilities/valueFromASTUntyped.js
@@ -1,7 +1,7 @@
 import type { ObjMap } from '../jsutils/ObjMap';
-import inspect from '../jsutils/inspect';
-import invariant from '../jsutils/invariant';
-import keyValMap from '../jsutils/keyValMap';
+import { inspect } from '../jsutils/inspect';
+import { invariant } from '../jsutils/invariant';
+import { keyValMap } from '../jsutils/keyValMap';
 
 import { Kind } from '../language/kinds';
 import type { ValueNode } from '../language/ast';
diff --git a/src/validation/__tests__/ValuesOfCorrectTypeRule-test.js b/src/validation/__tests__/ValuesOfCorrectTypeRule-test.js
index 1831b4670d..1f3cbab8e0 100644
--- a/src/validation/__tests__/ValuesOfCorrectTypeRule-test.js
+++ b/src/validation/__tests__/ValuesOfCorrectTypeRule-test.js
@@ -1,6 +1,6 @@
 import { describe, it } from 'mocha';
 
-import inspect from '../../jsutils/inspect';
+import { inspect } from '../../jsutils/inspect';
 
 import { GraphQLSchema } from '../../type/schema';
 import { GraphQLString } from '../../type/scalars';
diff --git a/src/validation/rules/FieldsOnCorrectTypeRule.js b/src/validation/rules/FieldsOnCorrectTypeRule.js
index 6e56c3bb22..6a1789b60f 100644
--- a/src/validation/rules/FieldsOnCorrectTypeRule.js
+++ b/src/validation/rules/FieldsOnCorrectTypeRule.js
@@ -1,6 +1,6 @@
-import didYouMean from '../../jsutils/didYouMean';
-import suggestionList from '../../jsutils/suggestionList';
-import naturalCompare from '../../jsutils/naturalCompare';
+import { didYouMean } from '../../jsutils/didYouMean';
+import { suggestionList } from '../../jsutils/suggestionList';
+import { naturalCompare } from '../../jsutils/naturalCompare';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/KnownArgumentNamesRule.js b/src/validation/rules/KnownArgumentNamesRule.js
index b1fd082463..dbd8fb82fe 100644
--- a/src/validation/rules/KnownArgumentNamesRule.js
+++ b/src/validation/rules/KnownArgumentNamesRule.js
@@ -1,5 +1,5 @@
-import didYouMean from '../../jsutils/didYouMean';
-import suggestionList from '../../jsutils/suggestionList';
+import { didYouMean } from '../../jsutils/didYouMean';
+import { suggestionList } from '../../jsutils/suggestionList';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/KnownDirectivesRule.js b/src/validation/rules/KnownDirectivesRule.js
index 8c2e60de88..05a0d3b261 100644
--- a/src/validation/rules/KnownDirectivesRule.js
+++ b/src/validation/rules/KnownDirectivesRule.js
@@ -1,5 +1,5 @@
-import inspect from '../../jsutils/inspect';
-import invariant from '../../jsutils/invariant';
+import { inspect } from '../../jsutils/inspect';
+import { invariant } from '../../jsutils/invariant';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/KnownTypeNamesRule.js b/src/validation/rules/KnownTypeNamesRule.js
index 38efd5a603..3c49b3840a 100644
--- a/src/validation/rules/KnownTypeNamesRule.js
+++ b/src/validation/rules/KnownTypeNamesRule.js
@@ -1,5 +1,5 @@
-import didYouMean from '../../jsutils/didYouMean';
-import suggestionList from '../../jsutils/suggestionList';
+import { didYouMean } from '../../jsutils/didYouMean';
+import { suggestionList } from '../../jsutils/suggestionList';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/OverlappingFieldsCanBeMergedRule.js b/src/validation/rules/OverlappingFieldsCanBeMergedRule.js
index 983f69099d..2aa25715ea 100644
--- a/src/validation/rules/OverlappingFieldsCanBeMergedRule.js
+++ b/src/validation/rules/OverlappingFieldsCanBeMergedRule.js
@@ -1,7 +1,7 @@
-import objectEntries from '../../polyfills/objectEntries';
+import { objectEntries } from '../../polyfills/objectEntries';
 
 import type { ObjMap } from '../../jsutils/ObjMap';
-import inspect from '../../jsutils/inspect';
+import { inspect } from '../../jsutils/inspect';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/PossibleFragmentSpreadsRule.js b/src/validation/rules/PossibleFragmentSpreadsRule.js
index ba4e9ca5ef..caf8575f22 100644
--- a/src/validation/rules/PossibleFragmentSpreadsRule.js
+++ b/src/validation/rules/PossibleFragmentSpreadsRule.js
@@ -1,4 +1,4 @@
-import inspect from '../../jsutils/inspect';
+import { inspect } from '../../jsutils/inspect';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/PossibleTypeExtensionsRule.js b/src/validation/rules/PossibleTypeExtensionsRule.js
index 2f098191ef..0a47c7da1a 100644
--- a/src/validation/rules/PossibleTypeExtensionsRule.js
+++ b/src/validation/rules/PossibleTypeExtensionsRule.js
@@ -1,7 +1,7 @@
-import inspect from '../../jsutils/inspect';
-import invariant from '../../jsutils/invariant';
-import didYouMean from '../../jsutils/didYouMean';
-import suggestionList from '../../jsutils/suggestionList';
+import { inspect } from '../../jsutils/inspect';
+import { invariant } from '../../jsutils/invariant';
+import { didYouMean } from '../../jsutils/didYouMean';
+import { suggestionList } from '../../jsutils/suggestionList';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/ProvidedRequiredArgumentsRule.js b/src/validation/rules/ProvidedRequiredArgumentsRule.js
index b9ff7a032b..ddcc49f49c 100644
--- a/src/validation/rules/ProvidedRequiredArgumentsRule.js
+++ b/src/validation/rules/ProvidedRequiredArgumentsRule.js
@@ -1,5 +1,5 @@
-import inspect from '../../jsutils/inspect';
-import keyMap from '../../jsutils/keyMap';
+import { inspect } from '../../jsutils/inspect';
+import { keyMap } from '../../jsutils/keyMap';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/ScalarLeafsRule.js b/src/validation/rules/ScalarLeafsRule.js
index a0c0c6cc40..c59667d91c 100644
--- a/src/validation/rules/ScalarLeafsRule.js
+++ b/src/validation/rules/ScalarLeafsRule.js
@@ -1,4 +1,4 @@
-import inspect from '../../jsutils/inspect';
+import { inspect } from '../../jsutils/inspect';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/ValuesOfCorrectTypeRule.js b/src/validation/rules/ValuesOfCorrectTypeRule.js
index d97647a000..d02d58ce1d 100644
--- a/src/validation/rules/ValuesOfCorrectTypeRule.js
+++ b/src/validation/rules/ValuesOfCorrectTypeRule.js
@@ -1,9 +1,9 @@
-import objectValues from '../../polyfills/objectValues';
+import { objectValues } from '../../polyfills/objectValues';
 
-import keyMap from '../../jsutils/keyMap';
-import inspect from '../../jsutils/inspect';
-import didYouMean from '../../jsutils/didYouMean';
-import suggestionList from '../../jsutils/suggestionList';
+import { keyMap } from '../../jsutils/keyMap';
+import { inspect } from '../../jsutils/inspect';
+import { didYouMean } from '../../jsutils/didYouMean';
+import { suggestionList } from '../../jsutils/suggestionList';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/VariablesInAllowedPositionRule.js b/src/validation/rules/VariablesInAllowedPositionRule.js
index 8d0cbbf26c..1070190876 100644
--- a/src/validation/rules/VariablesInAllowedPositionRule.js
+++ b/src/validation/rules/VariablesInAllowedPositionRule.js
@@ -1,4 +1,4 @@
-import inspect from '../../jsutils/inspect';
+import { inspect } from '../../jsutils/inspect';
 
 import { GraphQLError } from '../../error/GraphQLError';
 
diff --git a/src/validation/rules/custom/NoDeprecatedCustomRule.js b/src/validation/rules/custom/NoDeprecatedCustomRule.js
index 7fe6598bc4..fd86ff0975 100644
--- a/src/validation/rules/custom/NoDeprecatedCustomRule.js
+++ b/src/validation/rules/custom/NoDeprecatedCustomRule.js
@@ -1,4 +1,4 @@
-import invariant from '../../../jsutils/invariant';
+import { invariant } from '../../../jsutils/invariant';
 
 import { GraphQLError } from '../../../error/GraphQLError';
 
diff --git a/src/validation/validate.js b/src/validation/validate.js
index c51a56a6b7..9245230ffd 100644
--- a/src/validation/validate.js
+++ b/src/validation/validate.js
@@ -1,4 +1,4 @@
-import devAssert from '../jsutils/devAssert';
+import { devAssert } from '../jsutils/devAssert';
 
 import { GraphQLError } from '../error/GraphQLError';