diff --git a/.eslintrc.js b/.eslintrc.js
index b72d563d7295..e326c04673cc 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -26,6 +26,7 @@ module.exports = {
           'error',
           {argsIgnorePattern: '^_'},
         ],
+        '@typescript-eslint/prefer-ts-expect-error': 'error',
         // Since we do `export =`. Remove for Jest 25
         'import/default': 'off',
         'import/order': 'error',
diff --git a/package.json b/package.json
index 2d0915ab87c4..5b759bf35f89 100644
--- a/package.json
+++ b/package.json
@@ -73,7 +73,7 @@
     "strip-ansi": "^6.0.0",
     "tempy": "^0.5.0",
     "throat": "^5.0.0",
-    "typescript": "^3.8.2",
+    "typescript": "^3.9.2",
     "which": "^2.0.1"
   },
   "scripts": {
diff --git a/packages/babel-plugin-jest-hoist/src/index.ts b/packages/babel-plugin-jest-hoist/src/index.ts
index 714154256109..a9cbe1a0f65e 100644
--- a/packages/babel-plugin-jest-hoist/src/index.ts
+++ b/packages/babel-plugin-jest-hoist/src/index.ts
@@ -113,7 +113,7 @@ FUNCTIONS.mock = args => {
 
     const ids: Set<NodePath<Identifier>> = new Set();
     const parentScope = moduleFactory.parentPath.scope;
-    // @ts-ignore: ReferencedIdentifier is not known on visitors
+    // @ts-expect-error: ReferencedIdentifier is not known on visitors
     moduleFactory.traverse(IDVisitor, {ids});
     for (const id of ids) {
       const {name} = id.node;
diff --git a/packages/jest-circus/src/__tests__/circusItTestError.test.ts b/packages/jest-circus/src/__tests__/circusItTestError.test.ts
index 56e7b8fae366..d2dc7e5de6cf 100644
--- a/packages/jest-circus/src/__tests__/circusItTestError.test.ts
+++ b/packages/jest-circus/src/__tests__/circusItTestError.test.ts
@@ -29,7 +29,7 @@ describe('test/it error throwing', () => {
   });
   it(`it throws error with missing callback function`, () => {
     expect(() => {
-      // @ts-ignore: Easy, we're testing runtime errors here
+      // @ts-expect-error: Easy, we're testing runtime errors here
       circusIt('test2');
     }).toThrowError(
       'Missing second argument. It must be a callback function. Perhaps you want to use `test.todo` for a test placeholder.',
@@ -37,13 +37,13 @@ describe('test/it error throwing', () => {
   });
   it(`it throws an error when first argument isn't a string`, () => {
     expect(() => {
-      // @ts-ignore: Easy, we're testing runtime errors here
+      // @ts-expect-error: Easy, we're testing runtime errors here
       circusIt(() => {});
     }).toThrowError('Invalid first argument, () => {}. It must be a string.');
   });
   it('it throws an error when callback function is not a function', () => {
     expect(() => {
-      // @ts-ignore: Easy, we're testing runtime errors here
+      // @ts-expect-error: Easy, we're testing runtime errors here
       circusIt('test4', 'test4b');
     }).toThrowError(
       'Invalid second argument, test4b. It must be a callback function.',
@@ -56,7 +56,7 @@ describe('test/it error throwing', () => {
   });
   it(`test throws error with missing callback function`, () => {
     expect(() => {
-      // @ts-ignore: Easy, we're testing runtime errors here
+      // @ts-expect-error: Easy, we're testing runtime errors here
       circusTest('test6');
     }).toThrowError(
       'Missing second argument. It must be a callback function. Perhaps you want to use `test.todo` for a test placeholder.',
@@ -64,13 +64,13 @@ describe('test/it error throwing', () => {
   });
   it(`test throws an error when first argument isn't a string`, () => {
     expect(() => {
-      // @ts-ignore: Easy, we're testing runtime errors here
+      // @ts-expect-error: Easy, we're testing runtime errors here
       circusTest(() => {});
     }).toThrowError('Invalid first argument, () => {}. It must be a string.');
   });
   it('test throws an error when callback function is not a function', () => {
     expect(() => {
-      // @ts-ignore: Easy, we're testing runtime errors here
+      // @ts-expect-error: Easy, we're testing runtime errors here
       circusTest('test8', 'test8b');
     }).toThrowError(
       'Invalid second argument, test8b. It must be a callback function.',
diff --git a/packages/jest-circus/src/__tests__/circusItTodoTestError.test.ts b/packages/jest-circus/src/__tests__/circusItTodoTestError.test.ts
index 1eb655de77dd..b783b7b3069a 100644
--- a/packages/jest-circus/src/__tests__/circusItTodoTestError.test.ts
+++ b/packages/jest-circus/src/__tests__/circusItTodoTestError.test.ts
@@ -22,7 +22,7 @@ aliasCircusIt();
 describe('test/it.todo error throwing', () => {
   it('todo throws error when given no arguments', () => {
     expect(() => {
-      // @ts-ignore: Testing runtime errors here
+      // @ts-expect-error: Testing runtime errors here
       circusIt.todo();
     }).toThrowError('Todo must be called with only a description.');
   });
@@ -33,7 +33,7 @@ describe('test/it.todo error throwing', () => {
   });
   it('todo throws error when given none string description', () => {
     expect(() => {
-      // @ts-ignore: Testing runtime errors here
+      // @ts-expect-error: Testing runtime errors here
       circusIt.todo(() => {});
     }).toThrowError('Todo must be called with only a description.');
   });
diff --git a/packages/jest-cli/src/__tests__/cli/args.test.ts b/packages/jest-cli/src/__tests__/cli/args.test.ts
index 46ff7a7e4aed..6a3808f704c0 100644
--- a/packages/jest-cli/src/__tests__/cli/args.test.ts
+++ b/packages/jest-cli/src/__tests__/cli/args.test.ts
@@ -101,11 +101,11 @@ describe('check', () => {
 
 describe('buildArgv', () => {
   it('should return only camelcased args ', () => {
-    // @ts-ignore
+    // @ts-expect-error
     const mockProcessArgv = jest
       .spyOn(process.argv, 'slice')
       .mockImplementation(() => ['--clear-mocks']);
-    // @ts-ignore
+    // @ts-expect-error
     const actual = buildArgv(null);
     expect(actual).not.toHaveProperty('clear-mocks');
     expect(actual).toHaveProperty('clearMocks', true);
diff --git a/packages/jest-cli/src/init/index.ts b/packages/jest-cli/src/init/index.ts
index bd7c030b09e3..7a92a29ec0d7 100644
--- a/packages/jest-cli/src/init/index.ts
+++ b/packages/jest-cli/src/init/index.ts
@@ -108,7 +108,7 @@ export default async (
 
   let promptAborted: boolean = false;
 
-  // @ts-ignore: Return type cannot be object - faulty typings
+  // @ts-expect-error: Return type cannot be object - faulty typings
   const results: PromptsResults = await prompts(questions, {
     onCancel: () => {
       promptAborted = true;
diff --git a/packages/jest-config/src/__tests__/getMaxWorkers.test.ts b/packages/jest-config/src/__tests__/getMaxWorkers.test.ts
index 443db5ec141b..9710ad4e87ae 100644
--- a/packages/jest-config/src/__tests__/getMaxWorkers.test.ts
+++ b/packages/jest-config/src/__tests__/getMaxWorkers.test.ts
@@ -39,19 +39,19 @@ describe('getMaxWorkers', () => {
   describe('% based', () => {
     it('50% = 2 workers', () => {
       const argv = {maxWorkers: '50%'};
-      // @ts-ignore: need to fix the typing
+      // @ts-expect-error: need to fix the typing
       expect(getMaxWorkers(argv)).toBe(2);
     });
 
     it('< 0 workers should become 1', () => {
       const argv = {maxWorkers: '1%'};
-      // @ts-ignore: need to fix the typing
+      // @ts-expect-error: need to fix the typing
       expect(getMaxWorkers(argv)).toBe(1);
     });
 
     it("0% shouldn't break", () => {
       const argv = {maxWorkers: '0%'};
-      // @ts-ignore: need to fix the typing
+      // @ts-expect-error: need to fix the typing
       expect(getMaxWorkers(argv)).toBe(1);
     });
   });
diff --git a/packages/jest-config/src/__tests__/readConfig.test.ts b/packages/jest-config/src/__tests__/readConfig.test.ts
index 8566c78423e2..1452e8355171 100644
--- a/packages/jest-config/src/__tests__/readConfig.test.ts
+++ b/packages/jest-config/src/__tests__/readConfig.test.ts
@@ -10,7 +10,7 @@ import {readConfig} from '../index';
 test('readConfig() throws when an object is passed without a file path', async () => {
   await expect(
     readConfig(
-      // @ts-ignore
+      // @ts-expect-error
       null /* argv */,
       {} /* packageRootOrConfig */,
       false /* skipArgvConfigOption */,
diff --git a/packages/jest-config/src/__tests__/readConfigs.test.ts b/packages/jest-config/src/__tests__/readConfigs.test.ts
index 97fa1b351bf9..25fc0e33c5a8 100644
--- a/packages/jest-config/src/__tests__/readConfigs.test.ts
+++ b/packages/jest-config/src/__tests__/readConfigs.test.ts
@@ -19,7 +19,7 @@ jest.mock('../readConfigFileAndSetRootDir', () => jest.fn(() => mockResult));
 
 test('readConfigs() throws when called without project paths', async () => {
   await expect(
-    // @ts-ignore
+    // @ts-expect-error
     readConfigs(null /* argv */, [] /* projectPaths */),
   ).rejects.toThrowError('jest: No configuration found for any project.');
 });
@@ -29,7 +29,7 @@ test('readConfigs() loads async config file', async () => {
     rootDir: './',
   }));
   await expect(
-    // @ts-ignore
+    // @ts-expect-error
     readConfigs(
       <Config.Argv>{} /* argv */,
       ['./some-jest-config-file.js'] /* projectPaths */,
@@ -43,7 +43,7 @@ test('readConfigs() reject if async was rejected', async () => {
     throw new Error('Some error');
   });
   await expect(
-    // @ts-ignore
+    // @ts-expect-error
     readConfigs(
       <Config.Argv>{} /* argv */,
       ['./some-jest-config-file.js'] /* projectPaths */,
diff --git a/packages/jest-config/src/normalize.ts b/packages/jest-config/src/normalize.ts
index 8ec7da7f35a2..9f6f35062759 100644
--- a/packages/jest-config/src/normalize.ts
+++ b/packages/jest-config/src/normalize.ts
@@ -140,7 +140,7 @@ const setupPreset = (
       }
     } catch (e) {}
 
-    // @ts-ignore: `presetModule` can be null?
+    // @ts-expect-error: `presetModule` can be null?
     preset = require(presetModule);
   } catch (error) {
     if (error instanceof SyntaxError || error instanceof TypeError) {
@@ -943,7 +943,7 @@ export default function normalize(
         });
         break;
     }
-    // @ts-ignore: automock is missing in GlobalConfig, so what
+    // @ts-expect-error: automock is missing in GlobalConfig, so what
     newOptions[key] = value;
     return newOptions;
   }, newOptions);
diff --git a/packages/jest-config/src/readConfigFileAndSetRootDir.ts b/packages/jest-config/src/readConfigFileAndSetRootDir.ts
index 0a4628092eb0..06cbaecc10d6 100644
--- a/packages/jest-config/src/readConfigFileAndSetRootDir.ts
+++ b/packages/jest-config/src/readConfigFileAndSetRootDir.ts
@@ -9,7 +9,7 @@ import * as path from 'path';
 import {pathToFileURL} from 'url';
 import * as fs from 'graceful-fs';
 import type {Config} from '@jest/types';
-// @ts-ignore: vendored
+// @ts-expect-error: vendored
 import jsonlint from './vendor/jsonlint';
 import {JEST_CONFIG_EXT_JSON, PACKAGE_JSON} from './constants';
 
diff --git a/packages/jest-core/src/watch.ts b/packages/jest-core/src/watch.ts
index b1f60c3878b4..77fb88417783 100644
--- a/packages/jest-core/src/watch.ts
+++ b/packages/jest-core/src/watch.ts
@@ -504,7 +504,7 @@ const getPluginIdentifier = (plugin: WatchPlugin) =>
   // WatchPlugin is an interface, and it is my understanding interface
   // static fields are not definable anymore, no idea how to circumvent
   // this :-(
-  // @ts-ignore: leave `displayName` be.
+  // @ts-expect-error: leave `displayName` be.
   plugin.constructor.displayName || plugin.constructor.name;
 
 const getPluginKey = (
diff --git a/packages/jest-environment-jsdom/src/__mocks__/index.ts b/packages/jest-environment-jsdom/src/__mocks__/index.ts
index c87188636ec8..6f2641dfb719 100644
--- a/packages/jest-environment-jsdom/src/__mocks__/index.ts
+++ b/packages/jest-environment-jsdom/src/__mocks__/index.ts
@@ -11,7 +11,7 @@ const vm = jest.requireActual('vm');
 const JSDOMEnvironment = jest.createMockFromModule('../index') as jest.Mock;
 
 JSDOMEnvironment.mockImplementation(function (config) {
-  // @ts-ignore
+  // @ts-expect-error
   this.global = {
     JSON,
     console: {},
@@ -19,7 +19,7 @@ JSDOMEnvironment.mockImplementation(function (config) {
 
   const globalValues = {...config.globals};
   for (const customGlobalKey in globalValues) {
-    // @ts-ignore
+    // @ts-expect-error
     this.global[customGlobalKey] = globalValues[customGlobalKey];
   }
 });
@@ -28,7 +28,7 @@ JSDOMEnvironment.prototype.runSourceText.mockImplementation(function (
   sourceText: string,
   filename: string,
 ) {
-  // @ts-ignore
+  // @ts-expect-error
   return vm.runInNewContext(sourceText, this.global, {
     displayErrors: false,
     filename,
diff --git a/packages/jest-environment-jsdom/src/index.ts b/packages/jest-environment-jsdom/src/index.ts
index fc30e7e50833..bdd5eec27734 100644
--- a/packages/jest-environment-jsdom/src/index.ts
+++ b/packages/jest-environment-jsdom/src/index.ts
@@ -38,7 +38,8 @@ class JSDOMEnvironment implements JestEnvironment {
       virtualConsole: new VirtualConsole().sendTo(options.console || console),
       ...config.testEnvironmentOptions,
     });
-    const global = (this.global = this.dom.window.document.defaultView as Win);
+    const global = (this.global = (this.dom.window.document
+      .defaultView as unknown) as Win);
 
     if (!global) {
       throw new Error('JSDOM did not return a Window object');
@@ -118,7 +119,7 @@ class JSDOMEnvironment implements JestEnvironment {
       this.global.close();
     }
     this.errorEventListener = null;
-    // @ts-ignore
+    // @ts-expect-error
     this.global = null;
     this.dom = null;
     this.fakeTimers = null;
diff --git a/packages/jest-environment-node/src/__tests__/node_environment.test.ts b/packages/jest-environment-node/src/__tests__/node_environment.test.ts
index 0e760db861e4..3cfb43c6d103 100644
--- a/packages/jest-environment-node/src/__tests__/node_environment.test.ts
+++ b/packages/jest-environment-node/src/__tests__/node_environment.test.ts
@@ -39,7 +39,7 @@ describe('NodeEnvironment', () => {
     const timer2 = env1.global.setInterval(() => {}, 0);
 
     [timer1, timer2].forEach(timer => {
-      // @ts-ignore
+      // @ts-expect-error
       expect(timer.id).not.toBeUndefined();
       expect(typeof timer.ref).toBe('function');
       expect(typeof timer.unref).toBe('function');
diff --git a/packages/jest-fake-timers/src/legacyFakeTimers.ts b/packages/jest-fake-timers/src/legacyFakeTimers.ts
index f425d4ed1607..6185f77f0c27 100644
--- a/packages/jest-fake-timers/src/legacyFakeTimers.ts
+++ b/packages/jest-fake-timers/src/legacyFakeTimers.ts
@@ -366,10 +366,11 @@ export default class FakeTimers<TimerRef> {
 
   private _createMocks() {
     const fn = (impl: Function) =>
-      // @ts-ignore TODO: figure out better typings here
+      // @ts-expect-error TODO: figure out better typings here
       this._moduleMocker.fn().mockImplementation(impl);
 
     const promisifiableFakeSetTimeout = fn(this._fakeSetTimeout.bind(this));
+    // @ts-expect-error TODO: figure out better typings here
     promisifiableFakeSetTimeout[util.promisify.custom] = (
       delay?: number,
       arg?: unknown,
@@ -382,8 +383,11 @@ export default class FakeTimers<TimerRef> {
       clearInterval: fn(this._fakeClearTimer.bind(this)),
       clearTimeout: fn(this._fakeClearTimer.bind(this)),
       nextTick: fn(this._fakeNextTick.bind(this)),
+      // @ts-expect-error TODO: figure out better typings here
       setImmediate: fn(this._fakeSetImmediate.bind(this)),
+      // @ts-expect-error TODO: figure out better typings here
       setInterval: fn(this._fakeSetInterval.bind(this)),
+      // @ts-expect-error TODO: figure out better typings here
       setTimeout: promisifiableFakeSetTimeout,
     };
   }
diff --git a/packages/jest-fake-timers/src/modernFakeTimers.ts b/packages/jest-fake-timers/src/modernFakeTimers.ts
index b0cd8c479a65..03ca30807a89 100644
--- a/packages/jest-fake-timers/src/modernFakeTimers.ts
+++ b/packages/jest-fake-timers/src/modernFakeTimers.ts
@@ -81,7 +81,7 @@ export default class FakeTimers {
 
   runAllTicks(): void {
     if (this._checkFakeTimers()) {
-      // @ts-ignore
+      // @ts-expect-error
       this._clock.runMicrotasks();
     }
   }
diff --git a/packages/jest-haste-map/src/index.ts b/packages/jest-haste-map/src/index.ts
index ef1e420400df..572164a4bbf2 100644
--- a/packages/jest-haste-map/src/index.ts
+++ b/packages/jest-haste-map/src/index.ts
@@ -26,7 +26,7 @@ import HasteModuleMap, {
 import nodeCrawl = require('./crawlers/node');
 import normalizePathSep from './lib/normalizePathSep';
 import watchmanCrawl = require('./crawlers/watchman');
-// @ts-ignore: not converted to TypeScript - it's a fork: https://github.com/facebook/jest/pull/5387
+// @ts-expect-error: not converted to TypeScript - it's a fork: https://github.com/facebook/jest/pull/5387
 import WatchmanWatcher from './lib/WatchmanWatcher';
 import FSEventsWatcher = require('./lib/FSEventsWatcher');
 import * as fastPath from './lib/fast_path';
@@ -513,7 +513,6 @@ class HasteMap extends EventEmitter {
         error.stack = ''; // Remove stack for stack-less errors.
       }
 
-      // @ts-ignore: checking error code is OK if error comes from "fs".
       if (!['ENOENT', 'EACCES'].includes(error.code)) {
         throw error;
       }
@@ -677,9 +676,9 @@ class HasteMap extends EventEmitter {
   private _cleanup() {
     const worker = this._worker;
 
-    // @ts-ignore
+    // @ts-expect-error
     if (worker && typeof worker.end === 'function') {
-      // @ts-ignore
+      // @ts-expect-error
       worker.end();
     }
 
@@ -701,7 +700,7 @@ class HasteMap extends EventEmitter {
       if ((options && options.forceInBand) || this._options.maxWorkers <= 1) {
         this._worker = {getSha1, worker};
       } else {
-        // @ts-ignore: assignment of a worker with custom properties.
+        // @ts-expect-error: assignment of a worker with custom properties.
         this._worker = new Worker(require.resolve('./worker'), {
           exposedMethods: ['getSha1', 'worker'],
           maxRetries: 3,
@@ -789,7 +788,7 @@ class HasteMap extends EventEmitter {
     let mustCopy = true;
 
     const createWatcher = (root: Config.Path): Promise<Watcher> => {
-      // @ts-ignore: TODO how? "Cannot use 'new' with an expression whose type lacks a call or construct signature."
+      // @ts-expect-error: TODO how? "Cannot use 'new' with an expression whose type lacks a call or construct signature."
       const watcher = new Watcher(root, {
         dot: false,
         glob: extensions.map(extension => '**/*.' + extension),
@@ -1035,7 +1034,7 @@ class HasteMap extends EventEmitter {
   }
 
   end(): Promise<void> {
-    // @ts-ignore: TODO TS cannot decide if `setInterval` and `clearInterval` comes from NodeJS or the DOM
+    // @ts-expect-error: TODO TS cannot decide if `setInterval` and `clearInterval` comes from NodeJS or the DOM
     clearInterval(this._changeInterval);
     if (!this._watchers.length) {
       return Promise.resolve();
diff --git a/packages/jest-haste-map/src/lib/FSEventsWatcher.ts b/packages/jest-haste-map/src/lib/FSEventsWatcher.ts
index 5cac36f02133..2cf05da9655b 100644
--- a/packages/jest-haste-map/src/lib/FSEventsWatcher.ts
+++ b/packages/jest-haste-map/src/lib/FSEventsWatcher.ts
@@ -11,9 +11,10 @@ import {EventEmitter} from 'events';
 import * as fs from 'graceful-fs';
 import anymatch, {Matcher} from 'anymatch';
 import micromatch = require('micromatch');
-// @ts-ignore no types
+// @ts-expect-error no types
 import walker from 'walker';
 
+// eslint-disable-next-line @typescript-eslint/prefer-ts-expect-error
 // @ts-ignore: this is for CI which runs linux and might not have this
 let fsevents: typeof import('fsevents') | null = null;
 try {
diff --git a/packages/jest-jasmine2/src/__tests__/Suite.test.ts b/packages/jest-jasmine2/src/__tests__/Suite.test.ts
index e8323ea2e589..caf44ac93ffa 100644
--- a/packages/jest-jasmine2/src/__tests__/Suite.test.ts
+++ b/packages/jest-jasmine2/src/__tests__/Suite.test.ts
@@ -19,7 +19,7 @@ describe('Suite', () => {
 
   it("doesn't throw on addExpectationResult when there are no children", () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       suite.addExpectationResult();
     }).not.toThrow();
   });
diff --git a/packages/jest-jasmine2/src/__tests__/itTestError.test.ts b/packages/jest-jasmine2/src/__tests__/itTestError.test.ts
index e230949e8f28..2c37efeab2c8 100644
--- a/packages/jest-jasmine2/src/__tests__/itTestError.test.ts
+++ b/packages/jest-jasmine2/src/__tests__/itTestError.test.ts
@@ -16,13 +16,13 @@ describe('test/it error throwing', () => {
   });
   it(`it throws an error when first argument isn't a string`, () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       it(() => {});
     }).toThrowError(`Invalid first argument, () => {}. It must be a string.`);
   });
   it('it throws an error when callback function is not a function', () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       it('test3', 'test3b');
     }).toThrowError(
       'Invalid second argument, test3b. It must be a callback function.',
@@ -37,13 +37,13 @@ describe('test/it error throwing', () => {
   });
   test(`test throws an error when first argument isn't a string`, () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       test(() => {});
     }).toThrowError(`Invalid first argument, () => {}. It must be a string.`);
   });
   test('test throws an error when callback function is not a function', () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       test('test6', 'test6b');
     }).toThrowError(
       'Invalid second argument, test6b. It must be a callback function.',
diff --git a/packages/jest-jasmine2/src/__tests__/queueRunner.test.ts b/packages/jest-jasmine2/src/__tests__/queueRunner.test.ts
index 325c41042e0e..9cbf1570dac4 100644
--- a/packages/jest-jasmine2/src/__tests__/queueRunner.test.ts
+++ b/packages/jest-jasmine2/src/__tests__/queueRunner.test.ts
@@ -26,7 +26,7 @@ describe('queueRunner', () => {
       ],
       setTimeout,
     };
-    // @ts-ignore
+    // @ts-expect-error
     await queueRunner(options);
     expect(fnOne).toHaveBeenCalled();
     expect(fnTwo).toHaveBeenCalled();
@@ -50,7 +50,7 @@ describe('queueRunner', () => {
       ],
       setTimeout,
     };
-    // @ts-ignore
+    // @ts-expect-error
     await queueRunner(options);
     expect(fnOne).toHaveBeenCalled();
     expect(fail).toHaveBeenCalled();
@@ -79,7 +79,7 @@ describe('queueRunner', () => {
       ],
       setTimeout,
     };
-    // @ts-ignore
+    // @ts-expect-error
     await queueRunner(options);
     expect(fnOne).toHaveBeenCalled();
     expect(onException).toHaveBeenCalledWith(error);
@@ -107,7 +107,7 @@ describe('queueRunner', () => {
       ],
       setTimeout,
     };
-    // @ts-ignore
+    // @ts-expect-error
     await queueRunner(options);
     expect(fnOne).toHaveBeenCalled();
     expect(onException).toHaveBeenCalled();
@@ -127,7 +127,7 @@ describe('queueRunner', () => {
       queueableFns: [{fn: failFn}],
       setTimeout,
     };
-    // @ts-ignore
+    // @ts-expect-error
     await queueRunner(options);
 
     expect(options.fail).toHaveBeenCalledWith('miserably', 'failed');
@@ -152,7 +152,7 @@ describe('queueRunner', () => {
       ],
       setTimeout,
     };
-    // @ts-ignore
+    // @ts-expect-error
     await queueRunner(options);
     expect(fnOne).toHaveBeenCalled();
     expect(fail).toHaveBeenCalledWith(error);
diff --git a/packages/jest-jasmine2/src/__tests__/reporter.test.ts b/packages/jest-jasmine2/src/__tests__/reporter.test.ts
index 4e92f9b9cf4a..4bd50777fcc1 100644
--- a/packages/jest-jasmine2/src/__tests__/reporter.test.ts
+++ b/packages/jest-jasmine2/src/__tests__/reporter.test.ts
@@ -14,7 +14,7 @@ describe('Jasmine2Reporter', () => {
   let reporter: JasmineReporter;
 
   beforeEach(() => {
-    // @ts-ignore
+    // @ts-expect-error
     reporter = new JasmineReporter({});
   });
 
@@ -28,11 +28,11 @@ describe('Jasmine2Reporter', () => {
     reporter.suiteStarted({description: 'parent'} as SuiteResult);
     reporter.suiteStarted({description: 'child'} as SuiteResult);
     reporter.specDone(makeSpec('spec 1'));
-    // @ts-ignore
+    // @ts-expect-error
     reporter.suiteDone();
     reporter.suiteStarted({description: 'child 2'} as SuiteResult);
     reporter.specDone(makeSpec('spec 2'));
-    // @ts-ignore
+    // @ts-expect-error
     reporter.jasmineDone();
 
     return reporter.getResults().then(runResults => {
diff --git a/packages/jest-jasmine2/src/__tests__/todoError.test.ts b/packages/jest-jasmine2/src/__tests__/todoError.test.ts
index 758cfda9140e..aab30f522aca 100644
--- a/packages/jest-jasmine2/src/__tests__/todoError.test.ts
+++ b/packages/jest-jasmine2/src/__tests__/todoError.test.ts
@@ -9,7 +9,7 @@
 describe('test/it.todo error throwing', () => {
   it('it throws error when given no arguments', () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       it.todo();
     }).toThrowError('Todo must be called with only a description.');
   });
@@ -20,7 +20,7 @@ describe('test/it.todo error throwing', () => {
   });
   it('it throws error when given none string description', () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       it.todo(() => {});
     }).toThrowError('Todo must be called with only a description.');
   });
diff --git a/packages/jest-jasmine2/src/errorOnPrivate.ts b/packages/jest-jasmine2/src/errorOnPrivate.ts
index b619dba153f9..0df3568af49a 100644
--- a/packages/jest-jasmine2/src/errorOnPrivate.ts
+++ b/packages/jest-jasmine2/src/errorOnPrivate.ts
@@ -53,7 +53,7 @@ export function installErrorOnPrivate(global: Global.Global): void {
   (Object.keys(disabledJasmineMethods) as Array<
     DisabledJasmineMethodsKeys
   >).forEach(methodName => {
-    // @ts-ignore
+    // @ts-expect-error
     jasmine[methodName] = () => {
       throwAtFunction(disabledJasmineMethods[methodName], jasmine[methodName]);
     };
diff --git a/packages/jest-jasmine2/src/index.ts b/packages/jest-jasmine2/src/index.ts
index 8d77212ba5ba..7c081b7846b1 100644
--- a/packages/jest-jasmine2/src/index.ts
+++ b/packages/jest-jasmine2/src/index.ts
@@ -52,7 +52,7 @@ async function jasmine2(
       const stack = getCallsite(1, runtime.getSourceMaps());
       const it = originalIt(...args);
 
-      // @ts-ignore
+      // @ts-expect-error
       it.result.__callsite = stack;
 
       return it;
@@ -63,7 +63,7 @@ async function jasmine2(
       const stack = getCallsite(1, runtime.getSourceMaps());
       const xit = originalXit(...args);
 
-      // @ts-ignore
+      // @ts-expect-error
       xit.result.__callsite = stack;
 
       return xit;
@@ -74,7 +74,7 @@ async function jasmine2(
       const stack = getCallsite(1, runtime.getSourceMaps());
       const fit = originalFit(...args);
 
-      // @ts-ignore
+      // @ts-expect-error
       fit.result.__callsite = stack;
 
       return fit;
diff --git a/packages/jest-jasmine2/src/jasmine/Env.ts b/packages/jest-jasmine2/src/jasmine/Env.ts
index a94173a7321f..cc2acc3eee6a 100644
--- a/packages/jest-jasmine2/src/jasmine/Env.ts
+++ b/packages/jest-jasmine2/src/jasmine/Env.ts
@@ -384,7 +384,7 @@ export default function (j$: Jasmine) {
           suite.pend();
         }
         if (currentDeclarationSuite.markedTodo) {
-          // @ts-ignore TODO Possible error: Suite does not have todo method
+          // @ts-expect-error TODO Possible error: Suite does not have todo method
           suite.todo();
         }
         addSpecsToSuite(suite, specDefinitions);
@@ -664,7 +664,7 @@ export default function (j$: Jasmine) {
           (error && error.name === AssertionError.name)
         ) {
           checkIsError = false;
-          // @ts-ignore TODO Possible error: j$.Spec does not have expand property
+          // @ts-expect-error TODO Possible error: j$.Spec does not have expand property
           message = assertionErrorMessage(error, {expand: j$.Spec.expand});
         } else {
           const check = isError(error);
diff --git a/packages/jest-jasmine2/src/jasmine/ReportDispatcher.ts b/packages/jest-jasmine2/src/jasmine/ReportDispatcher.ts
index a4548b69b212..7995d25424d5 100644
--- a/packages/jest-jasmine2/src/jasmine/ReportDispatcher.ts
+++ b/packages/jest-jasmine2/src/jasmine/ReportDispatcher.ts
@@ -37,17 +37,17 @@ export default class ReportDispatcher implements Reporter {
   provideFallbackReporter: (reporter: Reporter) => void;
   clearReporters: () => void;
 
-  // @ts-ignore
+  // @ts-expect-error
   jasmineDone: (runDetails: RunDetails) => void;
-  // @ts-ignore
+  // @ts-expect-error
   jasmineStarted: (runDetails: RunDetails) => void;
-  // @ts-ignore
+  // @ts-expect-error
   specDone: (result: SpecResult) => void;
-  // @ts-ignore
+  // @ts-expect-error
   specStarted: (spec: SpecResult) => void;
-  // @ts-ignore
+  // @ts-expect-error
   suiteDone: (result: SuiteResult) => void;
-  // @ts-ignore
+  // @ts-expect-error
   suiteStarted: (result: SuiteResult) => void;
 
   constructor(methods: Array<keyof Reporter>) {
@@ -86,7 +86,7 @@ export default class ReportDispatcher implements Reporter {
       for (let i = 0; i < reporters.length; i++) {
         const reporter = reporters[i];
         if (reporter[method]) {
-          // @ts-ignore
+          // @ts-expect-error
           reporter[method].apply(reporter, args);
         }
       }
diff --git a/packages/jest-jasmine2/src/jasmine/Spec.ts b/packages/jest-jasmine2/src/jasmine/Spec.ts
index a8d4e53a5685..8f0bcdfe5db4 100644
--- a/packages/jest-jasmine2/src/jasmine/Spec.ts
+++ b/packages/jest-jasmine2/src/jasmine/Spec.ts
@@ -142,7 +142,7 @@ export default class Spec {
 
     this.queueableFn.initError = this.initError;
 
-    // @ts-ignore
+    // @ts-expect-error
     this.result = {
       id: this.id,
       description: this.description,
@@ -192,7 +192,7 @@ export default class Spec {
     this.currentRun = this.queueRunnerFactory({
       queueableFns: allFns,
       onException() {
-        // @ts-ignore
+        // @ts-expect-error
         self.onException.apply(self, arguments);
       },
       userContext: this.userContext(),
diff --git a/packages/jest-jasmine2/src/jestExpect.ts b/packages/jest-jasmine2/src/jestExpect.ts
index 6d8cf5a9cb63..e0495cb9f0b7 100644
--- a/packages/jest-jasmine2/src/jestExpect.ts
+++ b/packages/jest-jasmine2/src/jestExpect.ts
@@ -59,12 +59,12 @@ export default (config: {expand: boolean}): void => {
         return this.isNot
           ? negativeCompare.apply(
               null,
-              // @ts-ignore
+              // @ts-expect-error
               args,
             )
           : result.compare.apply(
               null,
-              // @ts-ignore
+              // @ts-expect-error
               args,
             );
       };
diff --git a/packages/jest-jasmine2/src/queueRunner.ts b/packages/jest-jasmine2/src/queueRunner.ts
index c57130a201cb..21af10a51de6 100644
--- a/packages/jest-jasmine2/src/queueRunner.ts
+++ b/packages/jest-jasmine2/src/queueRunner.ts
@@ -6,7 +6,7 @@
  */
 
 import {formatTime} from 'jest-util';
-// @ts-ignore ignore vendor file
+// @ts-expect-error ignore vendor file
 import PCancelable from './PCancelable';
 import pTimeout from './pTimeout';
 
diff --git a/packages/jest-leak-detector/src/__tests__/index.test.ts b/packages/jest-leak-detector/src/__tests__/index.test.ts
index 1d8f0c6f0896..e5833ccf3acd 100644
--- a/packages/jest-leak-detector/src/__tests__/index.test.ts
+++ b/packages/jest-leak-detector/src/__tests__/index.test.ts
@@ -31,7 +31,7 @@ it('complains if the value is a primitive', () => {
 it('does not show the GC if hidden', async () => {
   const detector = new LeakDetector({});
 
-  // @ts-ignore: purposefully removed
+  // @ts-expect-error: purposefully removed
   global.gc = undefined;
   await detector.isLeaking();
   expect(global.gc).not.toBeDefined();
diff --git a/packages/jest-matcher-utils/src/__tests__/index.test.ts b/packages/jest-matcher-utils/src/__tests__/index.test.ts
index 2afa9f79de62..96412e07d461 100644
--- a/packages/jest-matcher-utils/src/__tests__/index.test.ts
+++ b/packages/jest-matcher-utils/src/__tests__/index.test.ts
@@ -105,12 +105,12 @@ describe('stringify()', () => {
 describe('ensureNumbers()', () => {
   test('dont throw error when variables are numbers', () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       ensureNumbers(1, 2);
     }).not.toThrow();
     if (isBigIntDefined) {
       expect(() => {
-        // @ts-ignore
+        // @ts-expect-error
         ensureNumbers(BigInt(1), BigInt(2));
       }).not.toThrow();
     }
@@ -118,14 +118,14 @@ describe('ensureNumbers()', () => {
 
   test('throws error when expected is not a number (backward compatibility)', () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       ensureNumbers(1, 'not_a_number', '.toBeCloseTo');
     }).toThrowErrorMatchingSnapshot();
   });
 
   test('throws error when received is not a number (backward compatibility)', () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       ensureNumbers('not_a_number', 3, '.toBeCloseTo');
     }).toThrowErrorMatchingSnapshot();
   });
@@ -140,7 +140,7 @@ describe('ensureNumbers()', () => {
         secondArgument: 'precision',
       };
       expect(() => {
-        // @ts-ignore
+        // @ts-expect-error
         ensureNumbers('', 0, matcherName, options);
       }).toThrowErrorMatchingSnapshot();
     });
@@ -151,7 +151,7 @@ describe('ensureNumbers()', () => {
         // promise undefined is equivalent to empty string
       };
       expect(() => {
-        // @ts-ignore
+        // @ts-expect-error
         ensureNumbers(0.1, undefined, matcherName, options);
       }).toThrowErrorMatchingSnapshot();
     });
@@ -162,7 +162,7 @@ describe('ensureNumbers()', () => {
         promise: 'rejects',
       };
       expect(() => {
-        // @ts-ignore
+        // @ts-expect-error
         ensureNumbers(0.01, '0', matcherName, options);
       }).toThrowErrorMatchingSnapshot();
     });
@@ -173,7 +173,7 @@ describe('ensureNumbers()', () => {
         promise: 'rejects',
       };
       expect(() => {
-        // @ts-ignore
+        // @ts-expect-error
         ensureNumbers(Symbol('0.1'), 0, matcherName, options);
       }).toThrowErrorMatchingSnapshot();
     });
@@ -184,7 +184,7 @@ describe('ensureNumbers()', () => {
         promise: 'resolves',
       };
       expect(() => {
-        // @ts-ignore
+        // @ts-expect-error
         ensureNumbers(false, 0, matcherName, options);
       }).toThrowErrorMatchingSnapshot();
     });
@@ -195,7 +195,7 @@ describe('ensureNumbers()', () => {
         promise: 'resolves',
       };
       expect(() => {
-        // @ts-ignore
+        // @ts-expect-error
         ensureNumbers(0.1, null, matcherName, options);
       }).toThrowErrorMatchingSnapshot();
     });
@@ -205,7 +205,7 @@ describe('ensureNumbers()', () => {
 describe('ensureNoExpected()', () => {
   test('dont throw error when undefined', () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       ensureNoExpected(undefined);
     }).not.toThrow();
   });
diff --git a/packages/jest-mock/src/index.ts b/packages/jest-mock/src/index.ts
index a72847029b0d..7251b0a9ec02 100644
--- a/packages/jest-mock/src/index.ts
+++ b/packages/jest-mock/src/index.ts
@@ -417,7 +417,6 @@ class ModuleMockerClass {
 
         if (!isReadonlyProp(object, prop)) {
           const propDesc = Object.getOwnPropertyDescriptor(object, prop);
-          // @ts-ignore Object.__esModule
           if ((propDesc !== undefined && !propDesc.get) || object.__esModule) {
             slots.add(prop);
           }
@@ -566,11 +565,11 @@ class ModuleMockerClass {
                 // it easier to interact with mock instance call and
                 // return values
                 if (prototype[slot].type === 'function') {
-                  // @ts-ignore no index signature
+                  // @ts-expect-error no index signature
                   const protoImpl = this[slot];
-                  // @ts-ignore no index signature
+                  // @ts-expect-error no index signature
                   this[slot] = mocker.generateFromMetadata(prototype[slot]);
-                  // @ts-ignore no index signature
+                  // @ts-expect-error no index signature
                   this[slot]._protoImpl = protoImpl;
                 }
               });
@@ -795,7 +794,7 @@ class ModuleMockerClass {
   ): Mock<T, Y> {
     // metadata not compatible but it's the same type, maybe problem with
     // overloading of _makeComponent and not _generateMock?
-    // @ts-ignore
+    // @ts-expect-error
     const mock = this._makeComponent(metadata);
     if (metadata.refID != null) {
       refs[metadata.refID] = mock;
@@ -823,7 +822,7 @@ class ModuleMockerClass {
       mock.prototype.constructor = mock;
     }
 
-    return mock;
+    return mock as Mock<T, Y>;
   }
 
   /**
@@ -870,11 +869,11 @@ class ModuleMockerClass {
       metadata.value = component;
       return metadata;
     } else if (type === 'function') {
-      // @ts-ignore this is a function so it has a name
+      // @ts-expect-error this is a function so it has a name
       metadata.name = component.name;
-      // @ts-ignore may be a mock
+      // @ts-expect-error may be a mock
       if (component._isMockFunction === true) {
-        // @ts-ignore may be a mock
+        // @ts-expect-error may be a mock
         metadata.mockImpl = component.getMockImplementation();
       }
     }
@@ -890,13 +889,13 @@ class ModuleMockerClass {
       this._getSlots(component).forEach(slot => {
         if (
           type === 'function' &&
-          // @ts-ignore may be a mock
+          // @ts-expect-error may be a mock
           component._isMockFunction === true &&
           slot.match(/^mock/)
         ) {
           return;
         }
-        // @ts-ignore no index signature
+        // @ts-expect-error no index signature
         const slotMetadata = this.getMetadata<T, Y>(component[slot], refs);
         if (slotMetadata) {
           if (!members) {
@@ -978,7 +977,7 @@ class ModuleMockerClass {
 
       const isMethodOwner = object.hasOwnProperty(methodName);
 
-      // @ts-ignore overriding original method with a Mock
+      // @ts-expect-error overriding original method with a Mock
       object[methodName] = this._makeComponent({type: 'function'}, () => {
         if (isMethodOwner) {
           object[methodName] = original;
@@ -987,7 +986,7 @@ class ModuleMockerClass {
         }
       });
 
-      // @ts-ignore original method is now a Mock
+      // @ts-expect-error original method is now a Mock
       object[methodName].mockImplementation(function (this: unknown) {
         return original.apply(this, arguments);
       });
@@ -1052,9 +1051,9 @@ class ModuleMockerClass {
         );
       }
 
-      // @ts-ignore: mock is assignable
+      // @ts-expect-error: mock is assignable
       descriptor[accessType] = this._makeComponent({type: 'function'}, () => {
-        // @ts-ignore: mock is assignable
+        // @ts-expect-error: mock is assignable
         descriptor![accessType] = original;
         Object.defineProperty(obj, propertyName, descriptor!);
       });
@@ -1062,7 +1061,7 @@ class ModuleMockerClass {
       (descriptor[accessType] as Mock<T>).mockImplementation(function (
         this: unknown,
       ) {
-        // @ts-ignore
+        // @ts-expect-error
         return original.apply(this, arguments);
       });
     }
diff --git a/packages/jest-repl/src/cli/index.ts b/packages/jest-repl/src/cli/index.ts
index 94728bc9d1b1..9d027435023c 100644
--- a/packages/jest-repl/src/cli/index.ts
+++ b/packages/jest-repl/src/cli/index.ts
@@ -21,7 +21,6 @@ const REPL_SCRIPT = require.resolve('./repl.js');
 export = function (): void {
   const argv = <Config.Argv>yargs.usage(args.usage).options(args.options).argv;
 
-  // @ts-ignore: fix this at some point
   validateCLIOptions(argv, {...args.options, deprecationEntries});
 
   argv._ = [REPL_SCRIPT];
diff --git a/packages/jest-reporters/src/coverage_reporter.ts b/packages/jest-reporters/src/coverage_reporter.ts
index 5966bdde9600..7b4ded54abe5 100644
--- a/packages/jest-reporters/src/coverage_reporter.ts
+++ b/packages/jest-reporters/src/coverage_reporter.ts
@@ -96,10 +96,9 @@ export default class CoverageReporter extends BaseReporter {
             maxCols: process.stdout.columns || Infinity,
             ...additionalOptions,
           })
-          // @ts-ignore
+          // @ts-expect-error
           .execute(reportContext);
       });
-      // @ts-ignore
       aggregatedResults.coverageMap = map;
     } catch (e) {
       console.error(
@@ -111,7 +110,6 @@ export default class CoverageReporter extends BaseReporter {
       );
     }
 
-    // @ts-ignore
     this._checkThreshold(map);
   }
 
@@ -487,19 +485,13 @@ export default class CoverageReporter extends BaseReporter {
     }
 
     const map = await this._sourceMapStore.transformCoverage(this._coverageMap);
-    const reportContext = istanbulReport.createContext(
-      // @ts-ignore
-      {
-        // @ts-ignore
-        coverageMap: map,
-        dir: this._globalConfig.coverageDirectory,
-        // @ts-ignore
-        sourceFinder: this._sourceMapStore.sourceFinder,
-        watermarks: getWatermarks(this._globalConfig),
-      },
-    );
+    const reportContext = istanbulReport.createContext({
+      coverageMap: map,
+      dir: this._globalConfig.coverageDirectory,
+      sourceFinder: this._sourceMapStore.sourceFinder,
+      watermarks: getWatermarks(this._globalConfig),
+    });
 
-    // @ts-ignore
     return {map, reportContext};
   }
 }
diff --git a/packages/jest-reporters/src/notify_reporter.ts b/packages/jest-reporters/src/notify_reporter.ts
index 2fda318987d3..f6186f078ca9 100644
--- a/packages/jest-reporters/src/notify_reporter.ts
+++ b/packages/jest-reporters/src/notify_reporter.ts
@@ -79,7 +79,6 @@ export default class NotifyReporter extends BaseReporter {
         result.numPassedTests,
       )} passed`;
 
-      // @ts-ignore: https://github.com/DefinitelyTyped/DefinitelyTyped/pull/42303
       this._notifier.notify({icon, message, timeout: false, title});
     } else if (
       testsHaveRun &&
@@ -108,7 +107,6 @@ export default class NotifyReporter extends BaseReporter {
       const quitAnswer = 'Exit tests';
 
       if (!watchMode) {
-        // @ts-ignore: https://github.com/DefinitelyTyped/DefinitelyTyped/pull/42303
         this._notifier.notify({icon, message, timeout: false, title});
       } else {
         this._notifier.notify(
diff --git a/packages/jest-resolve/src/__tests__/resolve.test.ts b/packages/jest-resolve/src/__tests__/resolve.test.ts
index 6ecefafd513d..c7d985a0b523 100644
--- a/packages/jest-resolve/src/__tests__/resolve.test.ts
+++ b/packages/jest-resolve/src/__tests__/resolve.test.ts
@@ -10,7 +10,7 @@ import * as path from 'path';
 import * as fs from 'graceful-fs';
 import {ModuleMap} from 'jest-haste-map';
 import Resolver = require('../');
-// @ts-ignore: js file
+// @ts-expect-error: js file
 import userResolver from '../__mocks__/userResolver';
 import nodeModulesPaths from '../nodeModulesPaths';
 import defaultResolver from '../defaultResolver';
diff --git a/packages/jest-resolve/src/defaultResolver.ts b/packages/jest-resolve/src/defaultResolver.ts
index be1e6cabb1a7..b62270dab5c3 100644
--- a/packages/jest-resolve/src/defaultResolver.ts
+++ b/packages/jest-resolve/src/defaultResolver.ts
@@ -25,7 +25,7 @@ export default function defaultResolver(
   path: Config.Path,
   options: ResolverOptions,
 ): Config.Path {
-  // @ts-ignore: the "pnp" version named isn't in DefinitelyTyped
+  // @ts-expect-error: the "pnp" version named isn't in DefinitelyTyped
   if (process.versions.pnp) {
     return pnpResolver(path, options);
   }
diff --git a/packages/jest-resolve/src/index.ts b/packages/jest-resolve/src/index.ts
index b678dabbe3dc..42d4bf44afca 100644
--- a/packages/jest-resolve/src/index.ts
+++ b/packages/jest-resolve/src/index.ts
@@ -192,7 +192,7 @@ class Resolver {
       });
 
     if (!skipResolution) {
-      // @ts-ignore: the "pnp" version named isn't in DefinitelyTyped
+      // @ts-expect-error: the "pnp" version named isn't in DefinitelyTyped
       module = resolveNodeModule(moduleName, Boolean(process.versions.pnp));
 
       if (module) {
diff --git a/packages/jest-resolve/src/isBuiltinModule.ts b/packages/jest-resolve/src/isBuiltinModule.ts
index 4df97846acab..63e16aeb59a1 100644
--- a/packages/jest-resolve/src/isBuiltinModule.ts
+++ b/packages/jest-resolve/src/isBuiltinModule.ts
@@ -7,7 +7,7 @@
 
 import module = require('module');
 
-// @ts-ignore: "private" api
+// "private" api
 declare const process: {
   binding(type: string): {};
 };
diff --git a/packages/jest-resolve/src/shouldLoadAsEsm.ts b/packages/jest-resolve/src/shouldLoadAsEsm.ts
index a1938e70d5e6..cab7b850eae6 100644
--- a/packages/jest-resolve/src/shouldLoadAsEsm.ts
+++ b/packages/jest-resolve/src/shouldLoadAsEsm.ts
@@ -6,7 +6,7 @@
  */
 
 import {dirname, extname} from 'path';
-// @ts-ignore: experimental, not added to the types
+// @ts-expect-error: experimental, not added to the types
 import {SyntheticModule} from 'vm';
 import type {Config} from '@jest/types';
 import readPkgUp = require('read-pkg-up');
diff --git a/packages/jest-runner/src/runTest.ts b/packages/jest-runner/src/runTest.ts
index 7abfdf81729c..deb20ff7d7ec 100644
--- a/packages/jest-runner/src/runTest.ts
+++ b/packages/jest-runner/src/runTest.ts
@@ -38,7 +38,7 @@ function freezeConsole(
   testConsole: BufferedConsole | CustomConsole | NullConsole,
   config: Config.ProjectConfig,
 ) {
-  // @ts-ignore: `_log` is `private` - we should figure out some proper API here
+  // @ts-expect-error: `_log` is `private` - we should figure out some proper API here
   testConsole._log = function fakeConsolePush(
     _type: LogType,
     message: LogMessage,
diff --git a/packages/jest-runtime/src/index.ts b/packages/jest-runtime/src/index.ts
index aaacea67f06f..47d66dbae539 100644
--- a/packages/jest-runtime/src/index.ts
+++ b/packages/jest-runtime/src/index.ts
@@ -9,12 +9,12 @@ import {URL, fileURLToPath, pathToFileURL} from 'url';
 import * as path from 'path';
 import {
   Script,
-  // @ts-ignore: experimental, not added to the types
+  // @ts-expect-error: experimental, not added to the types
   SourceTextModule,
-  // @ts-ignore: experimental, not added to the types
+  // @ts-expect-error: experimental, not added to the types
   SyntheticModule,
   Context as VMContext,
-  // @ts-ignore: experimental, not added to the types
+  // @ts-expect-error: experimental, not added to the types
   Module as VMModule,
   compileFunction,
 } from 'vm';
@@ -450,7 +450,7 @@ class Runtime {
     const module = new SyntheticModule(
       ['default'],
       function () {
-        // @ts-ignore: TS doesn't know what `this` is
+        // @ts-expect-error: TS doesn't know what `this` is
         this.setExport('default', cjs);
       },
       {context, identifier: modulePath},
@@ -686,7 +686,7 @@ class Runtime {
   requireModuleOrMock<T = unknown>(from: Config.Path, moduleName: string): T {
     // this module is unmockable
     if (moduleName === '@jest/globals') {
-      // @ts-ignore: we don't care that it's not assignable to T
+      // @ts-expect-error: we don't care that it's not assignable to T
       return this.getGlobalsForCjs(from);
     }
 
@@ -1112,10 +1112,10 @@ class Runtime {
     return new SyntheticModule(
       ['default', ...Object.keys(required)],
       function () {
-        // @ts-ignore: TS doesn't know what `this` is
+        // @ts-expect-error: TS doesn't know what `this` is
         this.setExport('default', required);
         Object.entries(required).forEach(([key, value]) => {
-          // @ts-ignore: TS doesn't know what `this` is
+          // @ts-expect-error: TS doesn't know what `this` is
           this.setExport(key, value);
         });
       },
@@ -1141,7 +1141,7 @@ class Runtime {
         const error = new TypeError(
           `The argument 'filename' must be a file URL object, file URL string, or absolute path string. Received '${filename}'`,
         );
-        // @ts-ignore
+        // @ts-expect-error
         error.code = 'ERR_INVALID_ARG_TYPE';
         throw error;
       }
@@ -1159,7 +1159,7 @@ class Runtime {
     class Module extends nativeModule.Module {}
 
     Object.entries(nativeModule.Module).forEach(([key, value]) => {
-      // @ts-ignore
+      // @ts-expect-error
       Module[key] = value;
     });
 
@@ -1180,7 +1180,7 @@ class Runtime {
                 : ''
             }`,
           );
-          // @ts-ignore
+          // @ts-expect-error
           error.code = 'ERR_INVALID_ARG_TYPE';
           throw error;
         }
@@ -1458,14 +1458,14 @@ class Runtime {
       if (this._environment.global.jasmine) {
         this._environment.global.jasmine._DEFAULT_TIMEOUT_INTERVAL = timeout;
       } else {
-        // @ts-ignore: https://github.com/Microsoft/TypeScript/issues/24587
+        // @ts-expect-error: https://github.com/Microsoft/TypeScript/issues/24587
         this._environment.global[testTimeoutSymbol] = timeout;
       }
       return jestObject;
     };
 
     const retryTimes = (numTestRetries: number) => {
-      // @ts-ignore: https://github.com/Microsoft/TypeScript/issues/24587
+      // @ts-expect-error: https://github.com/Microsoft/TypeScript/issues/24587
       this._environment.global[retryTimesSymbol] = numTestRetries;
       return jestObject;
     };
@@ -1638,7 +1638,7 @@ class Runtime {
       Object.keys(globals),
       function () {
         Object.entries(globals).forEach(([key, value]) => {
-          // @ts-ignore: TS doesn't know what `this` is
+          // @ts-expect-error: TS doesn't know what `this` is
           this.setExport(key, value);
         });
       },
diff --git a/packages/jest-serializer/src/__tests__/index.test.ts b/packages/jest-serializer/src/__tests__/index.test.ts
index 45a6951315a8..174e3de5067c 100644
--- a/packages/jest-serializer/src/__tests__/index.test.ts
+++ b/packages/jest-serializer/src/__tests__/index.test.ts
@@ -19,7 +19,7 @@ const objs = [
   {key1: 'foo', key2: 'bar', key3: {array: [null, {}]}},
   {minusInf: -Infinity, nan: NaN, plusInf: +Infinity},
   {date: new Date(1234567890), re: /foo/gi},
-  // @ts-ignore - testing NaN
+  // @ts-expect-error - testing NaN
   {
     map: new Map([
       [NaN, 4],
diff --git a/packages/jest-snapshot/src/State.ts b/packages/jest-snapshot/src/State.ts
index 8cdfd52b817b..24fbbee262f5 100644
--- a/packages/jest-snapshot/src/State.ts
+++ b/packages/jest-snapshot/src/State.ts
@@ -54,7 +54,7 @@ type SaveStatus = {
 export default class SnapshotState {
   private _counters: Map<string, number>;
   private _dirty: boolean;
-  // @ts-ignore
+  // @ts-expect-error
   private _index: number;
   private _updateSnapshot: Config.SnapshotUpdateState;
   private _snapshotData: SnapshotData;
diff --git a/packages/jest-snapshot/src/__tests__/utils.test.ts b/packages/jest-snapshot/src/__tests__/utils.test.ts
index d84e9358866b..4e7816161d23 100644
--- a/packages/jest-snapshot/src/__tests__/utils.test.ts
+++ b/packages/jest-snapshot/src/__tests__/utils.test.ts
@@ -179,7 +179,7 @@ test('escaping', () => {
       'exports[`key`] = `"\'\\\\`;\n',
   );
 
-  // @ts-ignore
+  // @ts-expect-error
   const exports = {}; // eslint-disable-line @typescript-eslint/no-unused-vars
   // eslint-disable-next-line no-eval
   const readData = eval('var exports = {}; ' + writtenData + ' exports');
diff --git a/packages/jest-source-map/src/__tests__/getCallsite.test.ts b/packages/jest-source-map/src/__tests__/getCallsite.test.ts
index 1eecf64fb65e..7ddf40b4a51b 100644
--- a/packages/jest-source-map/src/__tests__/getCallsite.test.ts
+++ b/packages/jest-source-map/src/__tests__/getCallsite.test.ts
@@ -44,7 +44,7 @@ describe('getCallsite', () => {
 
     const sourceMapColumn = 1;
     const sourceMapLine = 2;
-    // @ts-ignore
+    // @ts-expect-error
     SourceMap.SourceMapConsumer = class {
       originalPositionFor(params: Record<string, any>) {
         expect(params).toMatchObject({
diff --git a/packages/jest-source-map/src/getCallsite.ts b/packages/jest-source-map/src/getCallsite.ts
index ecb903d7729e..863ce4327f94 100644
--- a/packages/jest-source-map/src/getCallsite.ts
+++ b/packages/jest-source-map/src/getCallsite.ts
@@ -57,7 +57,7 @@ export default (
   if (sourceMapFileName) {
     try {
       const sourceMap = readFileSync(sourceMapFileName, 'utf8');
-      // @ts-ignore: Not allowed to pass string
+      // @ts-expect-error: Not allowed to pass string
       addSourceMapConsumer(stack, new SourceMapConsumer(sourceMap));
     } catch (e) {
       // ignore
diff --git a/packages/jest-test-result/src/__tests__/formatTestResults.test.ts b/packages/jest-test-result/src/__tests__/formatTestResults.test.ts
index 523d79b34d7c..3b448597d90c 100644
--- a/packages/jest-test-result/src/__tests__/formatTestResults.test.ts
+++ b/packages/jest-test-result/src/__tests__/formatTestResults.test.ts
@@ -20,7 +20,7 @@ describe('formatTestResults', () => {
       {
         numFailingTests: 0,
         perfStats: {end: 2, start: 1},
-        // @ts-ignore
+        // @ts-expect-error
         testResults: [assertion],
       },
     ],
diff --git a/packages/jest-transform/src/ScriptTransformer.ts b/packages/jest-transform/src/ScriptTransformer.ts
index 0cf17915da3c..7e12631195ab 100644
--- a/packages/jest-transform/src/ScriptTransformer.ts
+++ b/packages/jest-transform/src/ScriptTransformer.ts
@@ -16,7 +16,7 @@ import {
 } from 'jest-util';
 import * as fs from 'graceful-fs';
 import {transformSync as babelTransform} from '@babel/core';
-// @ts-ignore: should just be `require.resolve`, but the tests mess that up
+// @ts-expect-error: should just be `require.resolve`, but the tests mess that up
 import babelPluginIstanbul from 'babel-plugin-istanbul';
 import {fromSource as sourcemapFromSource} from 'convert-source-map';
 import HasteMap = require('jest-haste-map');
@@ -563,7 +563,7 @@ export default class ScriptTransformer {
   /**
    * @deprecated use `this.shouldTransform` instead
    */
-  // @ts-ignore: Unused and private - remove in Jest 25
+  // @ts-expect-error: Unused and private - remove in Jest 25
   private _shouldTransform(filename: Config.Path): boolean {
     return this.shouldTransform(filename);
   }
diff --git a/packages/jest-util/src/__tests__/createProcessObject.test.ts b/packages/jest-util/src/__tests__/createProcessObject.test.ts
index c1658f793983..670e4f66b386 100644
--- a/packages/jest-util/src/__tests__/createProcessObject.test.ts
+++ b/packages/jest-util/src/__tests__/createProcessObject.test.ts
@@ -26,9 +26,9 @@ it('creates a process object that looks like the original one', () => {
   // "_events" property is checked to ensure event emitter properties are
   // properly copied.
   ['argv', 'env', '_events'].forEach(key => {
-    // @ts-ignore
+    // @ts-expect-error
     expect(fakeProcess[key]).toEqual(process[key]);
-    // @ts-ignore
+    // @ts-expect-error
     expect(fakeProcess[key]).not.toBe(process[key]);
   });
 
@@ -47,7 +47,7 @@ it('checks that process.env works as expected on Linux platforms', () => {
 
   // Existing properties inside process.env are copied to the fake environment.
   process.env.PROP_STRING = 'foo';
-  // @ts-ignore
+  // @ts-expect-error
   process.env.PROP_NUMBER = 3;
   process.env.PROP_UNDEFINED = undefined;
 
diff --git a/packages/jest-util/src/__tests__/deepCyclicCopy.test.ts b/packages/jest-util/src/__tests__/deepCyclicCopy.test.ts
index 926bbd540da3..71ac408dec55 100644
--- a/packages/jest-util/src/__tests__/deepCyclicCopy.test.ts
+++ b/packages/jest-util/src/__tests__/deepCyclicCopy.test.ts
@@ -23,7 +23,7 @@ it('returns the same value for primitive or function values', () => {
 it('does not execute getters/setters, but copies them', () => {
   const fn = jest.fn();
   const obj = {
-    // @ts-ignore
+    // @ts-expect-error
     get foo() {
       fn();
     },
@@ -84,13 +84,13 @@ it('uses the blacklist to avoid copying properties on the first level', () => {
 });
 
 it('does not keep the prototype by default when top level is object', () => {
-  // @ts-ignore
+  // @ts-expect-error
   const sourceObject = new (function () {})();
-  // @ts-ignore
+  // @ts-expect-error
   sourceObject.nestedObject = new (function () {})();
-  // @ts-ignore
+  // @ts-expect-error
   sourceObject.nestedArray = new (function () {
-    // @ts-ignore
+    // @ts-expect-error
     this.length = 0;
   })();
 
@@ -124,9 +124,9 @@ it('does not keep the prototype by default when top level is object', () => {
 it('does not keep the prototype by default when top level is array', () => {
   const spy = jest.spyOn(Array, 'isArray').mockImplementation(() => true);
 
-  // @ts-ignore
+  // @ts-expect-error
   const sourceArray = new (function () {
-    // @ts-ignore
+    // @ts-expect-error
     this.length = 0;
   })();
 
@@ -142,9 +142,9 @@ it('does not keep the prototype by default when top level is array', () => {
 it('does not keep the prototype of arrays when keepPrototype = false', () => {
   const spy = jest.spyOn(Array, 'isArray').mockImplementation(() => true);
 
-  // @ts-ignore
+  // @ts-expect-error
   const sourceArray = new (function () {
-    // @ts-ignore
+    // @ts-expect-error
     this.length = 0;
   })();
 
@@ -160,9 +160,9 @@ it('does not keep the prototype of arrays when keepPrototype = false', () => {
 it('keeps the prototype of arrays when keepPrototype = true', () => {
   const spy = jest.spyOn(Array, 'isArray').mockImplementation(() => true);
 
-  // @ts-ignore
+  // @ts-expect-error
   const sourceArray = new (function () {
-    // @ts-ignore
+    // @ts-expect-error
     this.length = 0;
   })();
 
@@ -173,13 +173,13 @@ it('keeps the prototype of arrays when keepPrototype = true', () => {
 });
 
 it('does not keep the prototype for objects when keepPrototype = false', () => {
-  // @ts-ignore
+  // @ts-expect-error
   const sourceobject = new (function () {})();
-  // @ts-ignore
+  // @ts-expect-error
   sourceobject.nestedObject = new (function () {})();
-  // @ts-ignore
+  // @ts-expect-error
   sourceobject.nestedArray = new (function () {
-    // @ts-ignore
+    // @ts-expect-error
     this.length = 0;
   })();
 
@@ -210,13 +210,13 @@ it('does not keep the prototype for objects when keepPrototype = false', () => {
 });
 
 it('keeps the prototype for objects when keepPrototype = true', () => {
-  // @ts-ignore
+  // @ts-expect-error
   const sourceObject = new (function () {})();
-  // @ts-ignore
+  // @ts-expect-error
   sourceObject.nestedObject = new (function () {})();
-  // @ts-ignore
+  // @ts-expect-error
   sourceObject.nestedArray = new (function () {
-    // @ts-ignore
+    // @ts-expect-error
     this.length = 0;
   })();
 
diff --git a/packages/jest-util/src/__tests__/installCommonGlobals.test.ts b/packages/jest-util/src/__tests__/installCommonGlobals.test.ts
index d61cd59389f8..d3f57912a483 100644
--- a/packages/jest-util/src/__tests__/installCommonGlobals.test.ts
+++ b/packages/jest-util/src/__tests__/installCommonGlobals.test.ts
@@ -16,7 +16,7 @@ function getGlobal(): NodeJS.Global {
 
 beforeEach(() => {
   fake = jest.fn();
-  // @ts-ignore
+  // @ts-expect-error
   global.DTRACE_NET_SERVER_CONNECTION = fake;
 
   installCommonGlobals = require('../installCommonGlobals').default;
diff --git a/packages/jest-util/src/convertDescriptorToString.ts b/packages/jest-util/src/convertDescriptorToString.ts
index 50324d218204..c10ea8bf7f83 100644
--- a/packages/jest-util/src/convertDescriptorToString.ts
+++ b/packages/jest-util/src/convertDescriptorToString.ts
@@ -29,7 +29,7 @@ export default function convertDescriptorToString<
   const stringified = descriptor.toString();
   const typeDescriptorMatch = stringified.match(/class|function/);
   const indexOfNameSpace =
-    // @ts-ignore: typeDescriptorMatch exists
+    // @ts-expect-error: typeDescriptorMatch exists
     typeDescriptorMatch.index + typeDescriptorMatch[0].length;
   const indexOfNameAfterSpace = stringified.search(/\(|\{/);
   const name = stringified.substring(indexOfNameSpace, indexOfNameAfterSpace);
diff --git a/packages/jest-util/src/installCommonGlobals.ts b/packages/jest-util/src/installCommonGlobals.ts
index e711df3ae2c4..ece4a40649d0 100644
--- a/packages/jest-util/src/installCommonGlobals.ts
+++ b/packages/jest-util/src/installCommonGlobals.ts
@@ -55,9 +55,9 @@ export default function (
 
   // Forward some APIs.
   DTRACE.forEach(dtrace => {
-    // @ts-ignore: no index
+    // @ts-expect-error: no index
     globalObject[dtrace] = function (...args: Array<any>) {
-      // @ts-ignore: no index
+      // @ts-expect-error: no index
       return global[dtrace].apply(this, args);
     };
   });
diff --git a/packages/jest-util/src/setGlobal.ts b/packages/jest-util/src/setGlobal.ts
index 012b3bd721ae..f840a7f4bae4 100644
--- a/packages/jest-util/src/setGlobal.ts
+++ b/packages/jest-util/src/setGlobal.ts
@@ -10,6 +10,6 @@ export default (
   key: string,
   value: unknown,
 ): void => {
-  // @ts-ignore: no index
+  // @ts-expect-error: no index
   globalToMutate[key] = value;
 };
diff --git a/packages/jest-validate/src/condition.ts b/packages/jest-validate/src/condition.ts
index b8bb69c763b6..9ae9be24416c 100644
--- a/packages/jest-validate/src/condition.ts
+++ b/packages/jest-validate/src/condition.ts
@@ -24,7 +24,7 @@ function validationConditionSingle(
 export function getValues<T = unknown>(validOption: T): Array<T> {
   if (
     Array.isArray(validOption) &&
-    // @ts-ignore
+    // @ts-expect-error
     validOption[MULTIPLE_VALID_OPTIONS_SYMBOL]
   ) {
     return validOption;
@@ -43,7 +43,7 @@ export function multipleValidOptions<T extends Array<any>>(
   ...args: T
 ): T[number] {
   const options = <T>[...args];
-  // @ts-ignore
+  // @ts-expect-error
   options[MULTIPLE_VALID_OPTIONS_SYMBOL] = true;
 
   return options;
diff --git a/packages/jest-worker/src/index.ts b/packages/jest-worker/src/index.ts
index 4107f6c4657a..5858f6c7f90e 100644
--- a/packages/jest-worker/src/index.ts
+++ b/packages/jest-worker/src/index.ts
@@ -26,7 +26,7 @@ function getExposedMethods(
     const module: Function | Record<string, any> = require(workerPath);
 
     exposedMethods = Object.keys(module).filter(
-      // @ts-ignore: no index
+      // @ts-expect-error: no index
       name => typeof module[name] === 'function',
     );
 
@@ -82,7 +82,7 @@ export default class JestWorker {
     };
 
     if (this._options.WorkerPool) {
-      // @ts-ignore: constructor target any?
+      // @ts-expect-error: constructor target any?
       this._workerPool = new this._options.WorkerPool(
         workerPath,
         workerPoolOptions,
@@ -113,7 +113,7 @@ export default class JestWorker {
         throw new TypeError('Cannot define a method called ' + name);
       }
 
-      // @ts-ignore: dynamic extension of the class instance is expected.
+      // @ts-expect-error: dynamic extension of the class instance is expected.
       this[name] = this._callFunctionWithArgs.bind(this, name);
     });
   }
diff --git a/packages/jest-worker/src/workers/ChildProcessWorker.ts b/packages/jest-worker/src/workers/ChildProcessWorker.ts
index 8410fdbf0cf7..375b2788b3e8 100644
--- a/packages/jest-worker/src/workers/ChildProcessWorker.ts
+++ b/packages/jest-worker/src/workers/ChildProcessWorker.ts
@@ -167,7 +167,7 @@ export default class ChildProcessWorker implements WorkerInterface {
 
         if (error != null && typeof error === 'object') {
           const extra = error;
-          // @ts-ignore: no index
+          // @ts-expect-error: no index
           const NativeCtor = global[response[1]];
           const Ctor = typeof NativeCtor === 'function' ? NativeCtor : Error;
 
@@ -176,7 +176,7 @@ export default class ChildProcessWorker implements WorkerInterface {
           error.stack = response[3];
 
           for (const key in extra) {
-            // @ts-ignore: adding custom properties to errors.
+            // @ts-expect-error: adding custom properties to errors.
             error[key] = extra[key];
           }
         }
@@ -187,7 +187,7 @@ export default class ChildProcessWorker implements WorkerInterface {
       case PARENT_MESSAGE_SETUP_ERROR:
         error = new Error('Error when calling setup: ' + response[2]);
 
-        // @ts-ignore: adding custom properties to errors.
+        // @ts-expect-error: adding custom properties to errors.
         error.type = response[1];
         error.stack = response[3];
 
diff --git a/packages/jest-worker/src/workers/NodeThreadsWorker.ts b/packages/jest-worker/src/workers/NodeThreadsWorker.ts
index 64837106eda2..49f98be9d696 100644
--- a/packages/jest-worker/src/workers/NodeThreadsWorker.ts
+++ b/packages/jest-worker/src/workers/NodeThreadsWorker.ts
@@ -145,7 +145,7 @@ export default class ExperimentalWorker implements WorkerInterface {
 
         if (error != null && typeof error === 'object') {
           const extra = error;
-          // @ts-ignore: no index
+          // @ts-expect-error: no index
           const NativeCtor = global[response[1]];
           const Ctor = typeof NativeCtor === 'function' ? NativeCtor : Error;
 
@@ -154,7 +154,7 @@ export default class ExperimentalWorker implements WorkerInterface {
           error.stack = response[3];
 
           for (const key in extra) {
-            // @ts-ignore: no index
+            // @ts-expect-error: no index
             error[key] = extra[key];
           }
         }
@@ -164,7 +164,7 @@ export default class ExperimentalWorker implements WorkerInterface {
       case PARENT_MESSAGE_SETUP_ERROR:
         error = new Error('Error when calling setup: ' + response[2]);
 
-        // @ts-ignore: adding custom properties to errors.
+        // @ts-expect-error: adding custom properties to errors.
         error.type = response[1];
         error.stack = response[3];
 
diff --git a/packages/pretty-format/src/__tests__/prettyFormat.test.ts b/packages/pretty-format/src/__tests__/prettyFormat.test.ts
index ddd99fc0ec7b..b217830a1c5f 100644
--- a/packages/pretty-format/src/__tests__/prettyFormat.test.ts
+++ b/packages/pretty-format/src/__tests__/prettyFormat.test.ts
@@ -14,7 +14,7 @@ function returnArguments(..._args: Array<unknown>) {
 class MyArray<T> extends Array<T> {}
 
 function MyObject(value: unknown) {
-  // @ts-ignore
+  // @ts-expect-error
   this.name = value;
 }
 
@@ -508,7 +508,7 @@ describe('prettyFormat()', () => {
         'map non-empty': new Map([['name', 'value']]),
         'object literal empty': {},
         'object literal non-empty': {name: 'value'},
-        // @ts-ignore
+        // @ts-expect-error
         'object with constructor': new MyObject('value'),
         'object without constructor': Object.create(null),
         'set empty': new Set(),
@@ -540,7 +540,7 @@ describe('prettyFormat()', () => {
 
   it('throws on invalid options', () => {
     expect(() => {
-      // @ts-ignore
+      // @ts-expect-error
       prettyFormat({}, {invalidOption: true});
     }).toThrow();
   });
@@ -811,7 +811,7 @@ describe('prettyFormat()', () => {
         'map non-empty': new Map([['name', 'value']]),
         'object literal empty': {},
         'object literal non-empty': {name: 'value'},
-        // @ts-ignore
+        // @ts-expect-error
         'object with constructor': new MyObject('value'),
         'object without constructor': Object.create(null),
         'set empty': new Set(),
diff --git a/packages/pretty-format/src/__tests__/react.test.tsx b/packages/pretty-format/src/__tests__/react.test.tsx
index 88a64c3f3eee..e2cdad9c9a10 100644
--- a/packages/pretty-format/src/__tests__/react.test.tsx
+++ b/packages/pretty-format/src/__tests__/react.test.tsx
@@ -634,7 +634,7 @@ test('throws if theme option is null', () => {
     'Hello, Mouse!',
   );
   expect(() => {
-    // @ts-ignore
+    // @ts-expect-error
     formatElement(jsx, {
       highlight: true,
       theme: null,
@@ -649,7 +649,7 @@ test('throws if theme option is not of type "object"', () => {
       {style: 'color:red'},
       'Hello, Mouse!',
     );
-    // @ts-ignore
+    // @ts-expect-error
     formatElement(jsx, {
       highlight: true,
       theme: 'beautiful',
diff --git a/scripts/verifyOldTs.js b/scripts/verifyOldTs.js
index 47c93fbc8ab4..cfa8b8c3ddd8 100644
--- a/scripts/verifyOldTs.js
+++ b/scripts/verifyOldTs.js
@@ -30,9 +30,14 @@ const tsConfig = {
 };
 const cwd = tempy.directory();
 
+const tsVersion = '3.8';
+
 try {
   execa.sync('yarn', ['init', '--yes'], {cwd, stdio: 'inherit'});
-  execa.sync('yarn', ['add', 'typescript@~3.8'], {cwd, stdio: 'inherit'});
+  execa.sync('yarn', ['add', `typescript@~${tsVersion}`], {
+    cwd,
+    stdio: 'inherit',
+  });
   fs.writeFileSync(
     path.join(cwd, 'tsconfig.json'),
     JSON.stringify(tsConfig, null, 2),
@@ -44,7 +49,9 @@ try {
   execa.sync('yarn', ['tsc', '--project', '.'], {cwd, stdio: 'inherit'});
 
   console.log(
-    chalk.inverse.green(' Successfully compiled Jest with TypeScript 3.4 '),
+    chalk.inverse.green(
+      ` Successfully compiled Jest with TypeScript ${tsVersion} `,
+    ),
   );
 } finally {
   rimraf.sync(cwd);
diff --git a/yarn.lock b/yarn.lock
index 624b75f1a1eb..8e3a6ddb5df3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -13301,10 +13301,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@*, typescript@^3.8.2:
-  version "3.8.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.3.tgz#409eb8544ea0335711205869ec458ab109ee1061"
-  integrity sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==
+typescript@*, typescript@^3.9.2:
+  version "3.9.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.2.tgz#64e9c8e9be6ea583c54607677dd4680a1cf35db9"
+  integrity sha512-q2ktq4n/uLuNNShyayit+DTobV2ApPEo/6so68JaD5ojvc/6GClBipedB9zNWYxRSAlZXAe405Rlijzl6qDiSw==
 
 ua-parser-js@^0.7.18:
   version "0.7.21"