diff --git a/packages/eslint-plugin-internal/jest.config.js b/packages/eslint-plugin-internal/jest.config.js
index b64d433b01a..1123e5ab8ad 100644
--- a/packages/eslint-plugin-internal/jest.config.js
+++ b/packages/eslint-plugin-internal/jest.config.js
@@ -1,6 +1,11 @@
 'use strict';
 
 module.exports = {
+  globals: {
+    'ts-jest': {
+      isolatedModules: true,
+    },
+  },
   testEnvironment: 'node',
   transform: {
     '^.+\\.tsx?$': 'ts-jest',
diff --git a/packages/eslint-plugin-tslint/jest.config.js b/packages/eslint-plugin-tslint/jest.config.js
index 862b0dda600..2cc2459cf65 100644
--- a/packages/eslint-plugin-tslint/jest.config.js
+++ b/packages/eslint-plugin-tslint/jest.config.js
@@ -1,6 +1,11 @@
 'use strict';
 
 module.exports = {
+  globals: {
+    'ts-jest': {
+      isolatedModules: true,
+    },
+  },
   testEnvironment: 'node',
   transform: {
     '^.+\\.tsx?$': 'ts-jest',
diff --git a/packages/eslint-plugin/jest.config.js b/packages/eslint-plugin/jest.config.js
index b64d433b01a..1123e5ab8ad 100644
--- a/packages/eslint-plugin/jest.config.js
+++ b/packages/eslint-plugin/jest.config.js
@@ -1,6 +1,11 @@
 'use strict';
 
 module.exports = {
+  globals: {
+    'ts-jest': {
+      isolatedModules: true,
+    },
+  },
   testEnvironment: 'node',
   transform: {
     '^.+\\.tsx?$': 'ts-jest',
diff --git a/packages/experimental-utils/jest.config.js b/packages/experimental-utils/jest.config.js
index b64d433b01a..1123e5ab8ad 100644
--- a/packages/experimental-utils/jest.config.js
+++ b/packages/experimental-utils/jest.config.js
@@ -1,6 +1,11 @@
 'use strict';
 
 module.exports = {
+  globals: {
+    'ts-jest': {
+      isolatedModules: true,
+    },
+  },
   testEnvironment: 'node',
   transform: {
     '^.+\\.tsx?$': 'ts-jest',
diff --git a/packages/parser/jest.config.js b/packages/parser/jest.config.js
index a74f80d7a06..309c75f2fd3 100644
--- a/packages/parser/jest.config.js
+++ b/packages/parser/jest.config.js
@@ -1,6 +1,11 @@
 'use strict';
 
 module.exports = {
+  globals: {
+    'ts-jest': {
+      isolatedModules: true,
+    },
+  },
   testEnvironment: 'node',
   transform: {
     '^.+\\.tsx?$': 'ts-jest',
diff --git a/packages/typescript-estree/jest.config.js b/packages/typescript-estree/jest.config.js
index e01f6ed0775..e69be1bf1f9 100644
--- a/packages/typescript-estree/jest.config.js
+++ b/packages/typescript-estree/jest.config.js
@@ -1,6 +1,11 @@
 'use strict';
 
 module.exports = {
+  globals: {
+    'ts-jest': {
+      isolatedModules: true,
+    },
+  },
   testEnvironment: 'node',
   transform: {
     '^.+\\.tsx?$': 'ts-jest',