diff --git a/bin/release-it.js b/bin/release-it.js
index fb6c7fef..c715f5b1 100755
--- a/bin/release-it.js
+++ b/bin/release-it.js
@@ -1,9 +1,9 @@
 #!/usr/bin/env node
 
-const updater = require('update-notifier');
-const parseArgs = require('yargs-parser');
-const pkg = require('../package.json');
-const release = require('../lib');
+import updater from 'update-notifier';
+import parseArgs from 'yargs-parser';
+import pkg from '../package.json';
+import release from '../lib/index.js';
 
 const aliases = {
   c: 'config',
diff --git a/lib/cli.js b/lib/cli.js
index b86e9955..9be7a6cc 100644
--- a/lib/cli.js
+++ b/lib/cli.js
@@ -1,5 +1,5 @@
-const pkg = require('../package.json');
-const Log = require('./log');
+import pkg from '../package.json';
+import Log from './log';
 
 const log = new Log();
 
@@ -22,6 +22,6 @@ const helpText = `Release It! v${pkg.version}
 
 For more details, please see https://github.com/release-it/release-it`;
 
-module.exports.version = () => log.log(`v${pkg.version}`);
+export let version = () => log.log(`v${pkg.version}`);
 
-module.exports.help = () => log.log(helpText);
+export let help = () => log.log(helpText);
diff --git a/lib/config.js b/lib/config.js
index b7c5e12a..83d7e666 100644
--- a/lib/config.js
+++ b/lib/config.js
@@ -1,12 +1,14 @@
-const { cosmiconfigSync } = require('cosmiconfig');
-const parseJson = require('parse-json');
-const parseToml = require('@iarna/toml/parse-string');
-const yaml = require('yaml');
-const _ = require('lodash');
-const isCI = require('is-ci');
-const debug = require('debug')('release-it:config');
-const defaultConfig = require('../config/release-it.json');
-const { getSystemInfo } = require('./util');
+import { cosmiconfigSync } from 'cosmiconfig';
+import parseJson from 'parse-json';
+import parseToml from '@iarna/toml/parse-string';
+import yaml from 'yaml';
+import _ from 'lodash';
+import isCI from 'is-ci';
+import _debug from 'debug';
+import defaultConfig from '../config/release-it.json';
+import { getSystemInfo } from './util';
+
+const debug = _debug('release-it:config');
 
 const searchPlaces = [
   'package.json',
@@ -128,4 +130,4 @@ class Config {
   }
 }
 
-module.exports = Config;
+export default Config;
diff --git a/lib/deprecated.js b/lib/deprecated.js
index a8511be1..ed8ba8ed 100644
--- a/lib/deprecated.js
+++ b/lib/deprecated.js
@@ -1,8 +1,8 @@
-const Deprecated = require('deprecated-obj');
-const deprecated = require('../config/deprecated.json');
-const Log = require('./log');
+import Deprecated from 'deprecated-obj';
+import deprecated from '../config/deprecated.json';
+import Log from './log';
 
-module.exports = (config, log = new Log()) => {
+export default (config, log = new Log()) => {
   const deprecations = new Deprecated(deprecated, config);
   const compliant = deprecations.getCompliant();
   const violations = deprecations.getViolations();
diff --git a/lib/index.js b/lib/index.js
index fbca9b7f..33a195ab 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,8 +1,8 @@
-const { version, help } = require('./cli');
-const runTasks = require('./tasks');
-const Plugin = require('./plugin/Plugin');
+import { version, help } from './cli';
+import runTasks from './tasks';
+import Plugin from './plugin/Plugin';
 
-module.exports = async options => {
+export default async options => {
   if (options.version) {
     version();
   } else if (options.help) {
@@ -13,4 +13,4 @@ module.exports = async options => {
   return Promise.resolve();
 };
 
-module.exports.Plugin = Plugin;
+export { Plugin };
diff --git a/lib/log.js b/lib/log.js
index 648232d6..b3136d8e 100644
--- a/lib/log.js
+++ b/lib/log.js
@@ -1,6 +1,6 @@
-const { EOL } = require('os');
-const chalk = require('chalk');
-const { isObject, last, filter, isString, lowerCase, upperFirst, isArray } = require('lodash');
+import { EOL } from 'os';
+import chalk from 'chalk';
+import { isObject, last, filter, isString, lowerCase, upperFirst, isArray } from 'lodash';
 
 class Logger {
   constructor({ isCI = true, isVerbose = false, verbosityLevel = 0, isDryRun = false } = {}) {
@@ -64,4 +64,4 @@ class Logger {
   }
 }
 
-module.exports = Logger;
+export default Logger;
diff --git a/lib/metrics.js b/lib/metrics.js
index e2b8d74b..a7c8d153 100644
--- a/lib/metrics.js
+++ b/lib/metrics.js
@@ -1,10 +1,12 @@
-const { EOL } = require('os');
-const got = require('got');
-const { v4: uuidv4 } = require('uuid');
-const osName = require('os-name');
-const isCi = require('is-ci');
-const debug = require('debug')('release-it:metrics');
-const pkg = require('../package.json');
+import { EOL } from 'os';
+import got from 'got';
+import { v4 as uuidv4 } from 'uuid';
+import osName from 'os-name';
+import isCi from 'is-ci';
+import _debug from 'debug';
+import pkg from '../package.json';
+
+const debug = _debug('release-it:metrics');
 
 const noop = Promise.resolve();
 
@@ -70,4 +72,4 @@ class Metrics {
   }
 }
 
-module.exports = Metrics;
+export default Metrics;
diff --git a/lib/plugin/GitBase.js b/lib/plugin/GitBase.js
index 0f2e79d6..7260cf2e 100644
--- a/lib/plugin/GitBase.js
+++ b/lib/plugin/GitBase.js
@@ -1,6 +1,6 @@
-const { EOL } = require('os');
-const { format, parseGitUrl } = require('../util');
-const Plugin = require('./Plugin');
+import { EOL } from 'os';
+import { format, parseGitUrl } from '../util';
+import Plugin from './Plugin';
 
 const options = { write: false };
 const changelogFallback = 'git log --pretty=format:"* %s (%h)"';
@@ -102,4 +102,4 @@ class GitBase extends Plugin {
   }
 }
 
-module.exports = GitBase;
+export default GitBase;
diff --git a/lib/plugin/GitRelease.js b/lib/plugin/GitRelease.js
index 6a8954fe..7f617735 100644
--- a/lib/plugin/GitRelease.js
+++ b/lib/plugin/GitRelease.js
@@ -1,6 +1,6 @@
-const _ = require('lodash');
-const defaultConfig = require('../../config/release-it.json');
-const GitBase = require('./GitBase');
+import _ from 'lodash';
+import defaultConfig from '../../config/release-it.json';
+import GitBase from './GitBase';
 
 class GitRelease extends GitBase {
   static isEnabled(options) {
@@ -37,4 +37,4 @@ class GitRelease extends GitBase {
   }
 }
 
-module.exports = GitRelease;
+export default GitRelease;
diff --git a/lib/plugin/Plugin.js b/lib/plugin/Plugin.js
index ec76e5e1..05087a30 100644
--- a/lib/plugin/Plugin.js
+++ b/lib/plugin/Plugin.js
@@ -1,5 +1,5 @@
-const debug = require('debug');
-const _ = require('lodash');
+import debug from 'debug';
+import _ from 'lodash';
 
 class Plugin {
   static isEnabled() {
@@ -69,4 +69,4 @@ class Plugin {
   }
 }
 
-module.exports = Plugin;
+export default Plugin;
diff --git a/lib/plugin/factory.js b/lib/plugin/factory.js
index 15b05cf8..9261c632 100644
--- a/lib/plugin/factory.js
+++ b/lib/plugin/factory.js
@@ -1,12 +1,14 @@
-const path = require('path');
-const _ = require('lodash');
-const requireCwd = require('import-cwd');
-const debug = require('debug')('release-it:plugins');
-const Version = require('./version/Version');
-const Git = require('./git/Git');
-const GitLab = require('./gitlab/GitLab');
-const GitHub = require('./github/GitHub');
-const npm = require('./npm/npm');
+import path from 'path';
+import _ from 'lodash';
+import requireCwd from 'import-cwd';
+import _debug from 'debug';
+import Version from './version/Version';
+import Git from './git/Git';
+import GitLab from './gitlab/GitLab';
+import GitHub from './github/GitHub';
+import npm from './npm/npm';
+
+const debug = _debug('release-it:plugins');
 
 const pluginNames = ['npm', 'git', 'github', 'gitlab', 'version'];
 
@@ -28,7 +30,7 @@ const load = pluginName => {
   return [path.parse(pluginName).name, plugin];
 };
 
-module.exports.getPlugins = async (config, container) => {
+export let getPlugins = async (config, container) => {
   const context = config.getContext();
   const disabledPlugins = [];
 
diff --git a/lib/plugin/git/Git.js b/lib/plugin/git/Git.js
index 0d137bce..fee4739a 100644
--- a/lib/plugin/git/Git.js
+++ b/lib/plugin/git/Git.js
@@ -1,9 +1,9 @@
-const { EOL } = require('os');
-const _ = require('lodash');
-const findUp = require('find-up');
-const { format, e } = require('../../util');
-const GitBase = require('../GitBase');
-const prompts = require('./prompts');
+import { EOL } from 'os';
+import _ from 'lodash';
+import findUp from 'find-up';
+import { format, e } from '../../util';
+import GitBase from '../GitBase';
+import prompts from './prompts';
 
 const noop = Promise.resolve();
 const invalidPushRepoRe = /^\S+@/;
@@ -201,4 +201,4 @@ class Git extends GitBase {
   }
 }
 
-module.exports = Git;
+export default Git;
diff --git a/lib/plugin/git/prompts.js b/lib/plugin/git/prompts.js
index 517a231e..f92911f1 100644
--- a/lib/plugin/git/prompts.js
+++ b/lib/plugin/git/prompts.js
@@ -1,6 +1,6 @@
-const { format, truncateLines } = require('../../util');
+import { format, truncateLines } from '../../util';
 
-module.exports = {
+export default {
   commit: {
     type: 'confirm',
     message: context => `Commit (${truncateLines(format(context.git.commitMessage, context), 1, ' [...]')})?`,
diff --git a/lib/plugin/github/GitHub.js b/lib/plugin/github/GitHub.js
index 8d48f27d..0600c586 100644
--- a/lib/plugin/github/GitHub.js
+++ b/lib/plugin/github/GitHub.js
@@ -1,14 +1,14 @@
-const fs = require('fs');
-const path = require('path');
-const { Octokit } = require('@octokit/rest');
-const globby = require('globby');
-const mime = require('mime-types');
-const _ = require('lodash');
-const retry = require('async-retry');
-const pkg = require('../../../package.json');
-const { format, parseVersion, e } = require('../../util');
-const Release = require('../GitRelease');
-const prompts = require('./prompts');
+import fs from 'fs';
+import path from 'path';
+import { Octokit } from '@octokit/rest';
+import globby from 'globby';
+import mime from 'mime-types';
+import _ from 'lodash';
+import retry from 'async-retry';
+import pkg from '../../../package.json';
+import { format, parseVersion, e } from '../../util';
+import Release from '../GitRelease';
+import prompts from './prompts';
 
 const docs = 'https://git.io/release-it-github';
 
@@ -308,4 +308,4 @@ class GitHub extends Release {
   }
 }
 
-module.exports = GitHub;
+export default GitHub;
diff --git a/lib/plugin/github/prompts.js b/lib/plugin/github/prompts.js
index eb5685a0..c65cf0fa 100644
--- a/lib/plugin/github/prompts.js
+++ b/lib/plugin/github/prompts.js
@@ -1,4 +1,4 @@
-const { format } = require('../../util');
+import { format } from '../../util';
 
 const message = context => {
   const { isPreRelease, isUpdate, github } = context;
@@ -7,7 +7,7 @@ const message = context => {
   return `${isUpdate ? 'Update' : 'Create a'} ${isPreRelease ? 'pre-' : ''}release on GitHub (${name})?`;
 };
 
-module.exports = {
+export default {
   release: {
     type: 'confirm',
     message,
diff --git a/lib/plugin/gitlab/GitLab.js b/lib/plugin/gitlab/GitLab.js
index 00419b06..9a5fe712 100644
--- a/lib/plugin/gitlab/GitLab.js
+++ b/lib/plugin/gitlab/GitLab.js
@@ -1,12 +1,12 @@
-const fs = require('fs');
-const path = require('path');
-const got = require('got');
-const globby = require('globby');
-const FormData = require('form-data');
-const _ = require('lodash');
-const Release = require('../GitRelease');
-const { format, e } = require('../../util');
-const prompts = require('./prompts');
+import fs from 'fs';
+import path from 'path';
+import got from 'got';
+import globby from 'globby';
+import FormData from 'form-data';
+import _ from 'lodash';
+import Release from '../GitRelease';
+import { format, e } from '../../util';
+import prompts from './prompts';
 
 const docs = 'https://git.io/release-it-gitlab';
 
@@ -215,4 +215,4 @@ class GitLab extends Release {
   }
 }
 
-module.exports = GitLab;
+export default GitLab;
diff --git a/lib/plugin/gitlab/prompts.js b/lib/plugin/gitlab/prompts.js
index 426fa5ea..c65b3d55 100644
--- a/lib/plugin/gitlab/prompts.js
+++ b/lib/plugin/gitlab/prompts.js
@@ -1,6 +1,6 @@
-const { format } = require('../../util');
+import { format } from '../../util';
 
-module.exports = {
+export default {
   release: {
     type: 'confirm',
     message: context => `Create a release on GitLab (${format(context.gitlab.releaseName, context)})?`,
diff --git a/lib/plugin/npm/npm.js b/lib/plugin/npm/npm.js
index ea5da02a..e57a969a 100644
--- a/lib/plugin/npm/npm.js
+++ b/lib/plugin/npm/npm.js
@@ -1,9 +1,9 @@
-const path = require('path');
-const semver = require('semver');
-const urlJoin = require('url-join');
-const Plugin = require('../Plugin');
-const { hasAccess, rejectAfter, parseVersion, e } = require('../../util');
-const prompts = require('./prompts');
+import path from 'path';
+import semver from 'semver';
+import urlJoin from 'url-join';
+import Plugin from '../Plugin';
+import { hasAccess, rejectAfter, parseVersion, e } from '../../util';
+import prompts from './prompts';
 
 const docs = 'https://git.io/release-it-npm';
 
@@ -255,4 +255,4 @@ class npm extends Plugin {
   }
 }
 
-module.exports = npm;
+export default npm;
diff --git a/lib/plugin/npm/prompts.js b/lib/plugin/npm/prompts.js
index 60567d32..724672b1 100644
--- a/lib/plugin/npm/prompts.js
+++ b/lib/plugin/npm/prompts.js
@@ -1,4 +1,4 @@
-module.exports = {
+export default {
   publish: {
     type: 'confirm',
     message: context =>
diff --git a/lib/plugin/version/Version.js b/lib/plugin/version/Version.js
index c595129e..3433450c 100644
--- a/lib/plugin/version/Version.js
+++ b/lib/plugin/version/Version.js
@@ -1,6 +1,6 @@
-const semver = require('semver');
-const chalk = require('chalk');
-const Plugin = require('../Plugin');
+import semver from 'semver';
+import chalk from 'chalk';
+import Plugin from '../Plugin';
 
 const { green, red, redBright } = chalk;
 
@@ -126,4 +126,4 @@ class Version extends Plugin {
   }
 }
 
-module.exports = Version;
+export default Version;
diff --git a/lib/prompt.js b/lib/prompt.js
index e9e5d647..c53bc603 100644
--- a/lib/prompt.js
+++ b/lib/prompt.js
@@ -1,4 +1,4 @@
-const inquirer = require('inquirer');
+import inquirer from 'inquirer';
 
 class Prompt {
   constructor({ container }) {
@@ -30,4 +30,4 @@ class Prompt {
   }
 }
 
-module.exports = Prompt;
+export default Prompt;
diff --git a/lib/shell.js b/lib/shell.js
index 2ce24e43..0412f8b9 100644
--- a/lib/shell.js
+++ b/lib/shell.js
@@ -1,7 +1,9 @@
-const sh = require('shelljs');
-const execa = require('execa');
-const debug = require('debug')('release-it:shell');
-const { format } = require('./util');
+import sh from 'shelljs';
+import execa from 'execa';
+import _debug from 'debug';
+import { format } from './util';
+
+const debug = _debug('release-it:shell');
 
 sh.config.silent = !debug.enabled;
 
@@ -86,4 +88,4 @@ class Shell {
   }
 }
 
-module.exports = Shell;
+export default Shell;
diff --git a/lib/spinner.js b/lib/spinner.js
index 99785309..1b028096 100644
--- a/lib/spinner.js
+++ b/lib/spinner.js
@@ -1,5 +1,5 @@
-const ora = require('ora');
-const { format } = require('./util');
+import ora from 'ora';
+import { format } from './util';
 
 const noop = Promise.resolve();
 
@@ -26,4 +26,4 @@ class Spinner {
   }
 }
 
-module.exports = Spinner;
+export default Spinner;
diff --git a/lib/tasks.js b/lib/tasks.js
index 85b3ff74..ab0f3dee 100644
--- a/lib/tasks.js
+++ b/lib/tasks.js
@@ -1,13 +1,13 @@
-const _ = require('lodash');
-const Factory = require('./plugin/factory');
-const Logger = require('./log');
-const Config = require('./config');
-const Shell = require('./shell');
-const Prompt = require('./prompt');
-const Spinner = require('./spinner');
-const Metrics = require('./metrics');
-const { reduceUntil, parseVersion } = require('./util');
-const handleDeprecated = require('./deprecated');
+import _ from 'lodash';
+import Factory from './plugin/factory';
+import Logger from './log';
+import Config from './config';
+import Shell from './shell';
+import Prompt from './prompt';
+import Spinner from './spinner';
+import Metrics from './metrics';
+import { reduceUntil, parseVersion } from './util';
+import handleDeprecated from './deprecated';
 
 const runTasks = async (opts, di) => {
   let container = {};
@@ -136,4 +136,4 @@ const runTasks = async (opts, di) => {
   }
 };
 
-module.exports = runTasks;
+export default runTasks;
diff --git a/lib/util.js b/lib/util.js
index d1e06a13..a0f8ee1a 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -1,11 +1,11 @@
-const fs = require('fs');
-const { EOL } = require('os');
-const _ = require('lodash');
-const gitUrlParse = require('git-url-parse');
-const semver = require('semver');
-const osName = require('os-name');
-const pkg = require('../package.json');
-const Log = require('./log');
+import fs from 'fs';
+import { EOL } from 'os';
+import _ from 'lodash';
+import gitUrlParse from 'git-url-parse';
+import semver from 'semver';
+import osName from 'os-name';
+import pkg from '../package.json';
+import Log from './log';
 
 const log = new Log();
 
@@ -87,15 +87,4 @@ const parseVersion = raw => {
 
 const e = (message, docs) => new Error(docs ? `${message}${EOL}Documentation: ${docs}${EOL}` : message);
 
-module.exports = {
-  getSystemInfo,
-  clean,
-  format,
-  truncateLines,
-  rejectAfter,
-  reduceUntil,
-  parseGitUrl,
-  hasAccess,
-  parseVersion,
-  e
-};
+export { getSystemInfo, clean, format, truncateLines, rejectAfter, reduceUntil, parseGitUrl, hasAccess, parseVersion, e };
diff --git a/test/cli.js b/test/cli.js
index 47818964..57e9cc83 100644
--- a/test/cli.js
+++ b/test/cli.js
@@ -1,7 +1,7 @@
-const test = require('ava');
-const mockStdIo = require('mock-stdio');
-const pkg = require('../package.json');
-const { version, help } = require('../lib/cli');
+import test from 'ava';
+import mockStdIo from 'mock-stdio';
+import pkg from '../package.json';
+import { version, help } from '../lib/cli';
 
 test('should print version', t => {
   mockStdIo.start();
diff --git a/test/config.js b/test/config.js
index 6b5f1dfb..81b08312 100644
--- a/test/config.js
+++ b/test/config.js
@@ -1,7 +1,7 @@
-const test = require('ava');
-const mock = require('mock-fs');
-const Config = require('../lib/config');
-const defaultConfig = require('../config/release-it.json');
+import test from 'ava';
+import mock from 'mock-fs';
+import Config from '../lib/config';
+import defaultConfig from '../config/release-it.json';
 
 const localConfig = { github: { release: true } };
 
diff --git a/test/deprecated.js b/test/deprecated.js
index 60ff3416..6ff8b3a0 100644
--- a/test/deprecated.js
+++ b/test/deprecated.js
@@ -1,7 +1,7 @@
-const test = require('ava');
-const sinon = require('sinon');
-const deprecated = require('../lib/deprecated');
-const Log = require('../lib/log');
+import test from 'ava';
+import sinon from 'sinon';
+import deprecated from '../lib/deprecated';
+import Log from '../lib/log';
 
 test('should show deprecation warnings and return compliant object', t => {
   const log = sinon.createStubInstance(Log);
diff --git a/test/git.init.js b/test/git.init.js
index 513af7a4..052016bc 100644
--- a/test/git.init.js
+++ b/test/git.init.js
@@ -1,10 +1,10 @@
-const test = require('ava');
-const sh = require('shelljs');
-const Shell = require('../lib/shell');
-const Git = require('../lib/plugin/git/Git');
-const { git } = require('../config/release-it.json');
-const { factory } = require('./util');
-const { mkTmpDir, gitAdd } = require('./util/helpers');
+import test from 'ava';
+import sh from 'shelljs';
+import Shell from '../lib/shell';
+import Git from '../lib/plugin/git/Git';
+import { git } from '../config/release-it.json';
+import { factory } from './util';
+import { mkTmpDir, gitAdd } from './util/helpers';
 
 test.serial.beforeEach(t => {
   const bare = mkTmpDir();
diff --git a/test/git.js b/test/git.js
index 68873edc..856ed3b2 100644
--- a/test/git.js
+++ b/test/git.js
@@ -1,10 +1,10 @@
-const { EOL } = require('os');
-const test = require('ava');
-const sinon = require('sinon');
-const sh = require('shelljs');
-const Git = require('../lib/plugin/git/Git');
-const { mkTmpDir, readFile, gitAdd } = require('./util/helpers');
-const { factory } = require('./util');
+import { EOL } from 'os';
+import test from 'ava';
+import sinon from 'sinon';
+import sh from 'shelljs';
+import Git from '../lib/plugin/git/Git';
+import { mkTmpDir, readFile, gitAdd } from './util/helpers';
+import { factory } from './util';
 
 test.beforeEach(() => {
   const tmp = mkTmpDir();
diff --git a/test/github.js b/test/github.js
index d01c6b84..b302e3ae 100644
--- a/test/github.js
+++ b/test/github.js
@@ -1,16 +1,9 @@
-const test = require('ava');
-const sinon = require('sinon');
-const { RequestError } = require('@octokit/request-error');
-const GitHub = require('../lib/plugin/github/GitHub');
-const { factory, runTasks } = require('./util');
-const {
-  interceptAuthentication,
-  interceptCollaborator,
-  interceptListReleases,
-  interceptCreate,
-  interceptUpdate,
-  interceptAsset
-} = require('./stub/github');
+import test from 'ava';
+import sinon from 'sinon';
+import { RequestError } from '@octokit/request-error';
+import GitHub from '../lib/plugin/github/GitHub';
+import { factory, runTasks } from './util';
+import { interceptAuthentication, interceptCollaborator, interceptListReleases, interceptCreate, interceptUpdate, interceptAsset } from './stub/github';
 
 const tokenRef = 'GITHUB_TOKEN';
 const pushRepo = 'git://github.com:user/repo';
diff --git a/test/gitlab.js b/test/gitlab.js
index 7a1073e8..91faf270 100644
--- a/test/gitlab.js
+++ b/test/gitlab.js
@@ -1,15 +1,9 @@
-const test = require('ava');
-const sinon = require('sinon');
-const nock = require('nock');
-const GitLab = require('../lib/plugin/gitlab/GitLab');
-const {
-  interceptUser,
-  interceptCollaborator,
-  interceptCollaboratorFallback,
-  interceptPublish,
-  interceptAsset
-} = require('./stub/gitlab');
-const { factory, runTasks } = require('./util');
+import test from 'ava';
+import sinon from 'sinon';
+import nock from 'nock';
+import GitLab from '../lib/plugin/gitlab/GitLab';
+import { interceptUser, interceptCollaborator, interceptCollaboratorFallback, interceptPublish, interceptAsset } from './stub/gitlab';
+import { factory, runTasks } from './util';
 
 const tokenHeader = 'Private-Token';
 const tokenRef = 'GITLAB_TOKEN';
diff --git a/test/log.js b/test/log.js
index e0a952ae..1c6ec23a 100644
--- a/test/log.js
+++ b/test/log.js
@@ -1,8 +1,8 @@
-const { EOL } = require('os');
-const test = require('ava');
-const mockStdIo = require('mock-stdio');
-const stripAnsi = require('strip-ansi');
-const Log = require('../lib/log');
+import { EOL } from 'os';
+import test from 'ava';
+import mockStdIo from 'mock-stdio';
+import stripAnsi from 'strip-ansi';
+import Log from '../lib/log';
 
 test('should write to stdout', t => {
   const log = new Log();
diff --git a/test/metrics.js b/test/metrics.js
index ff03338c..5a9537f4 100644
--- a/test/metrics.js
+++ b/test/metrics.js
@@ -1,6 +1,6 @@
-const test = require('ava');
-const sinon = require('sinon');
-const Metrics = require('../lib/metrics');
+import test from 'ava';
+import sinon from 'sinon';
+import Metrics from '../lib/metrics';
 
 test('should send metrics', async t => {
   const stub = sinon.stub().resolves();
diff --git a/test/npm.js b/test/npm.js
index 50dd66aa..e61c2b75 100644
--- a/test/npm.js
+++ b/test/npm.js
@@ -1,10 +1,10 @@
-const path = require('path');
-const test = require('ava');
-const sinon = require('sinon');
-const mock = require('mock-fs');
-const npm = require('../lib/plugin/npm/npm');
-const { factory, runTasks } = require('./util');
-const { getArgs } = require('./util/helpers');
+import path from 'path';
+import test from 'ava';
+import sinon from 'sinon';
+import mock from 'mock-fs';
+import npm from '../lib/plugin/npm/npm';
+import { factory, runTasks } from './util';
+import { getArgs } from './util/helpers';
 
 test('should return npm package url', t => {
   const options = { npm: { name: 'my-cool-package' } };
diff --git a/test/plugins.js b/test/plugins.js
index af1b4dff..ff4b52dd 100644
--- a/test/plugins.js
+++ b/test/plugins.js
@@ -1,14 +1,14 @@
-const path = require('path');
-const test = require('ava');
-const sh = require('shelljs');
-const proxyquire = require('proxyquire');
-const sinon = require('sinon');
-const Log = require('../lib/log');
-const Spinner = require('../lib/spinner');
-const Config = require('../lib/config');
-const Plugin = require('../lib/plugin/Plugin');
-const { mkTmpDir, gitAdd } = require('./util/helpers');
-const ShellStub = require('./stub/shell');
+import path from 'path';
+import test from 'ava';
+import sh from 'shelljs';
+import proxyquire from 'proxyquire';
+import sinon from 'sinon';
+import Log from '../lib/log';
+import Spinner from '../lib/spinner';
+import Config from '../lib/config';
+import Plugin from '../lib/plugin/Plugin';
+import { mkTmpDir, gitAdd } from './util/helpers';
+import ShellStub from './stub/shell';
 
 const noop = Promise.resolve();
 
diff --git a/test/prompt.js b/test/prompt.js
index e5d13e5a..189bd6a0 100644
--- a/test/prompt.js
+++ b/test/prompt.js
@@ -1,12 +1,12 @@
-const test = require('ava');
-const sinon = require('sinon');
-const Prompt = require('../lib/prompt');
-const Config = require('../lib/config');
-const git = require('../lib/plugin/git/prompts');
-const github = require('../lib/plugin/github/prompts');
-const gitlab = require('../lib/plugin/gitlab/prompts');
-const npm = require('../lib/plugin/npm/prompts');
-const { factory } = require('./util');
+import test from 'ava';
+import sinon from 'sinon';
+import Prompt from '../lib/prompt';
+import Config from '../lib/config';
+import git from '../lib/plugin/git/prompts';
+import github from '../lib/plugin/github/prompts';
+import gitlab from '../lib/plugin/gitlab/prompts';
+import npm from '../lib/plugin/npm/prompts';
+import { factory } from './util';
 
 const prompts = { git, github, gitlab, npm };
 
diff --git a/test/shell.js b/test/shell.js
index 1b5a149b..56dfb260 100644
--- a/test/shell.js
+++ b/test/shell.js
@@ -1,9 +1,9 @@
-const test = require('ava');
-const sh = require('shelljs');
-const sinon = require('sinon');
-const Shell = require('../lib/shell');
-const Log = require('../lib/log');
-const { factory } = require('./util');
+import test from 'ava';
+import sh from 'shelljs';
+import sinon from 'sinon';
+import Shell from '../lib/shell';
+import Log from '../lib/log';
+import { factory } from './util';
 
 const { stdout } = sh.exec('pwd');
 const cwd = stdout.trim();
diff --git a/test/spinner.js b/test/spinner.js
index cc704d17..0f4c0090 100644
--- a/test/spinner.js
+++ b/test/spinner.js
@@ -1,7 +1,7 @@
-const test = require('ava');
-const sinon = require('sinon');
-const Spinner = require('../lib/spinner');
-const Config = require('../lib/config');
+import test from 'ava';
+import sinon from 'sinon';
+import Spinner from '../lib/spinner';
+import Config from '../lib/config';
 
 test.beforeEach(t => {
   t.context.ora = {
diff --git a/test/stub/github.js b/test/stub/github.js
index 9f8c6752..bc9f3f69 100644
--- a/test/stub/github.js
+++ b/test/stub/github.js
@@ -1,4 +1,4 @@
-const nock = require('nock');
+import nock from 'nock';
 
 const interceptAuthentication = ({ api = 'https://api.github.com', username = 'john' } = {}) =>
   nock(api).get('/user').reply(200, {
@@ -104,11 +104,4 @@ const interceptAsset = ({
       };
     });
 
-module.exports = {
-  interceptAuthentication,
-  interceptCollaborator,
-  interceptListReleases,
-  interceptCreate,
-  interceptUpdate,
-  interceptAsset
-};
+export { interceptAuthentication, interceptCollaborator, interceptListReleases, interceptCreate, interceptUpdate, interceptAsset };
diff --git a/test/stub/gitlab.js b/test/stub/gitlab.js
index 5a011f59..0e372a1c 100644
--- a/test/stub/gitlab.js
+++ b/test/stub/gitlab.js
@@ -1,9 +1,9 @@
-const nock = require('nock');
+import nock from 'nock';
 
-module.exports.interceptUser = ({ host = 'https://gitlab.com', owner = 'user' } = {}, options) =>
+export let interceptUser = ({ host = 'https://gitlab.com', owner = 'user' } = {}, options) =>
   nock(host, options).get('/api/v4/user').reply(200, { id: 1, username: owner });
 
-module.exports.interceptCollaborator = (
+export let interceptCollaborator = (
   { host = 'https://gitlab.com', owner = 'user', project = 'repo', group, userId = 1 } = {},
   options
 ) =>
@@ -11,7 +11,7 @@ module.exports.interceptCollaborator = (
     .get(`/api/v4/projects/${group ? `${group}%2F` : ''}${owner}%2F${project}/members/all/${userId}`)
     .reply(200, { id: userId, username: owner, access_level: 30 });
 
-module.exports.interceptCollaboratorFallback = (
+export let interceptCollaboratorFallback = (
   { host = 'https://gitlab.com', owner = 'user', project = 'repo', group, userId = 1 } = {},
   options
 ) =>
@@ -19,12 +19,12 @@ module.exports.interceptCollaboratorFallback = (
     .get(`/api/v4/projects/${group ? `${group}%2F` : ''}${owner}%2F${project}/members/${userId}`)
     .reply(200, { id: userId, username: owner, access_level: 30 });
 
-module.exports.interceptPublish = (
+export let interceptPublish = (
   { host = 'https://gitlab.com', owner = 'user', project = 'repo', body } = {},
   options
 ) => nock(host, options).post(`/api/v4/projects/${owner}%2F${project}/releases`, body).reply(200, {});
 
-module.exports.interceptAsset = ({ host = 'https://gitlab.com', owner = 'user', project = 'repo' } = {}) =>
+export let interceptAsset = ({ host = 'https://gitlab.com', owner = 'user', project = 'repo' } = {}) =>
   nock(host)
     .post(`/api/v4/projects/${owner}%2F${project}/uploads`)
     .query(true)
diff --git a/test/stub/shell.js b/test/stub/shell.js
index 26074e87..0e4769c3 100644
--- a/test/stub/shell.js
+++ b/test/stub/shell.js
@@ -1,5 +1,7 @@
-const debug = require('debug')('release-it:shell-stub');
-const Shell = require('../../lib/shell');
+import _debug from 'debug';
+import Shell from '../../lib/shell';
+
+const debug = _debug('release-it:shell-stub');
 
 class ShellStub extends Shell {
   exec(command) {
@@ -19,4 +21,4 @@ class ShellStub extends Shell {
   }
 }
 
-module.exports = ShellStub;
+export default ShellStub;
diff --git a/test/tasks.interactive.js b/test/tasks.interactive.js
index e4264c1e..fa812ae3 100644
--- a/test/tasks.interactive.js
+++ b/test/tasks.interactive.js
@@ -1,17 +1,17 @@
-const path = require('path');
-const test = require('ava');
-const sh = require('shelljs');
-const _ = require('lodash');
-const sinon = require('sinon');
-const Log = require('../lib/log');
-const Spinner = require('../lib/spinner');
-const Prompt = require('../lib/prompt');
-const Config = require('../lib/config');
-const runTasks = require('../lib/tasks');
-const { mkTmpDir, gitAdd } = require('./util/helpers');
-const ShellStub = require('./stub/shell');
-const { interceptPublish: interceptGitLabPublish } = require('./stub/gitlab');
-const { interceptCreate: interceptGitHubCreate } = require('./stub/github');
+import path from 'path';
+import test from 'ava';
+import sh from 'shelljs';
+import _ from 'lodash';
+import sinon from 'sinon';
+import Log from '../lib/log';
+import Spinner from '../lib/spinner';
+import Prompt from '../lib/prompt';
+import Config from '../lib/config';
+import runTasks from '../lib/tasks';
+import { mkTmpDir, gitAdd } from './util/helpers';
+import ShellStub from './stub/shell';
+import { interceptPublish as interceptGitLabPublish } from './stub/gitlab';
+import { interceptCreate as interceptGitHubCreate } from './stub/github';
 
 const noop = Promise.resolve();
 
diff --git a/test/tasks.js b/test/tasks.js
index 9f9effb2..d161ff12 100644
--- a/test/tasks.js
+++ b/test/tasks.js
@@ -1,28 +1,18 @@
-const path = require('path');
-const test = require('ava');
-const sh = require('shelljs');
-const proxyquire = require('proxyquire');
-const _ = require('lodash');
-const sinon = require('sinon');
-const Log = require('../lib/log');
-const Spinner = require('../lib/spinner');
-const Config = require('../lib/config');
-const runTasks = require('../lib/tasks');
-const Plugin = require('../lib/plugin/Plugin');
-const { mkTmpDir, gitAdd, getArgs } = require('./util/helpers');
-const ShellStub = require('./stub/shell');
-const {
-  interceptUser: interceptGitLabUser,
-  interceptCollaborator: interceptGitLabCollaborator,
-  interceptPublish: interceptGitLabPublish,
-  interceptAsset: interceptGitLabAsset
-} = require('./stub/gitlab');
-const {
-  interceptAuthentication: interceptGitHubAuthentication,
-  interceptCollaborator: interceptGitHubCollaborator,
-  interceptCreate: interceptGitHubCreate,
-  interceptAsset: interceptGitHubAsset
-} = require('./stub/github');
+import path from 'path';
+import test from 'ava';
+import sh from 'shelljs';
+import proxyquire from 'proxyquire';
+import _ from 'lodash';
+import sinon from 'sinon';
+import Log from '../lib/log';
+import Spinner from '../lib/spinner';
+import Config from '../lib/config';
+import runTasks from '../lib/tasks';
+import Plugin from '../lib/plugin/Plugin';
+import { mkTmpDir, gitAdd, getArgs } from './util/helpers';
+import ShellStub from './stub/shell';
+import { interceptUser as interceptGitLabUser, interceptCollaborator as interceptGitLabCollaborator, interceptPublish as interceptGitLabPublish, interceptAsset as interceptGitLabAsset } from './stub/gitlab';
+import { interceptAuthentication as interceptGitHubAuthentication, interceptCollaborator as interceptGitHubCollaborator, interceptCreate as interceptGitHubCreate, interceptAsset as interceptGitHubAsset } from './stub/github';
 
 const noop = Promise.resolve();
 
diff --git a/test/util/helpers.js b/test/util/helpers.js
index fa10c079..a0418879 100644
--- a/test/util/helpers.js
+++ b/test/util/helpers.js
@@ -1,7 +1,7 @@
-const fs = require('fs').promises;
-const path = require('path');
-const sh = require('shelljs');
-const tmp = require('tmp');
+import { promises as fs } from 'fs';
+import path from 'path';
+import sh from 'shelljs';
+import tmp from 'tmp';
 
 const mkTmpDir = () => {
   const dir = tmp.dirSync({ prefix: 'release-it-' });
@@ -21,9 +21,4 @@ const gitAdd = (content, file, message) => {
 const getArgs = (args, prefix) =>
   args.filter(args => typeof args[0] === 'string' && args[0].startsWith(prefix)).map(args => args[0].trim());
 
-module.exports = {
-  mkTmpDir,
-  readFile,
-  gitAdd,
-  getArgs
-};
+export { mkTmpDir, readFile, gitAdd, getArgs };
diff --git a/test/util/index.js b/test/util/index.js
index 0d7d5cc1..c9baf4c1 100644
--- a/test/util/index.js
+++ b/test/util/index.js
@@ -1,14 +1,14 @@
-const _ = require('lodash');
-const sinon = require('sinon');
-const semver = require('semver');
-const { parseVersion } = require('../../lib/util');
-const Log = require('../../lib/log');
-const Config = require('../../lib/config');
-const ShellStub = require('../stub/shell');
-const Spinner = require('../../lib/spinner');
-const Prompt = require('../../lib/prompt');
-
-module.exports.factory = (Definition, { namespace, options = {}, container = {} } = {}) => {
+import _ from 'lodash';
+import sinon from 'sinon';
+import semver from 'semver';
+import { parseVersion } from '../../lib/util';
+import Log from '../../lib/log';
+import Config from '../../lib/config';
+import ShellStub from '../stub/shell';
+import Spinner from '../../lib/spinner';
+import Prompt from '../../lib/prompt';
+
+export let factory = (Definition, { namespace, options = {}, container = {} } = {}) => {
   _.defaults(options, { ci: true, verbose: false, 'dry-run': false, debug: false });
 
   const ns = namespace || Definition.name.toLowerCase();
@@ -51,7 +51,7 @@ const getVersion = async (plugin, { latestVersion, increment }) => {
   );
 };
 
-module.exports.runTasks = async plugin => {
+export let runTasks = async plugin => {
   await plugin.init();
 
   const name = (await plugin.getName()) || '__test__';
diff --git a/test/util/setup.js b/test/util/setup.js
index 33413875..5dcf63af 100644
--- a/test/util/setup.js
+++ b/test/util/setup.js
@@ -1,6 +1,6 @@
-const shelljs = require('shelljs');
-const nock = require('nock');
-const test = require('ava');
+import shelljs from 'shelljs';
+import nock from 'nock';
+import test from 'ava';
 
 shelljs.config.silent = true;
 nock.disableNetConnect();
diff --git a/test/utils.js b/test/utils.js
index 4499064d..6acb1815 100644
--- a/test/utils.js
+++ b/test/utils.js
@@ -1,8 +1,8 @@
-const { EOL } = require('os');
-const test = require('ava');
-const mockStdIo = require('mock-stdio');
-const stripAnsi = require('strip-ansi');
-const { format, truncateLines, parseGitUrl, parseVersion } = require('../lib/util');
+import { EOL } from 'os';
+import test from 'ava';
+import mockStdIo from 'mock-stdio';
+import stripAnsi from 'strip-ansi';
+import { format, truncateLines, parseGitUrl, parseVersion } from '../lib/util';
 
 test('format', t => {
   t.is(format('release v${version}', { version: '1.0.0' }), 'release v1.0.0');
diff --git a/test/version.js b/test/version.js
index 7adb10fa..10efe961 100644
--- a/test/version.js
+++ b/test/version.js
@@ -1,7 +1,7 @@
-const test = require('ava');
-const sinon = require('sinon');
-const Version = require('../lib/plugin/version/Version');
-const { factory, runTasks } = require('./util');
+import test from 'ava';
+import sinon from 'sinon';
+import Version from '../lib/plugin/version/Version';
+import { factory, runTasks } from './util';
 
 test('isValidVersion', t => {
   const v = factory(Version);