diff --git a/packages/graphql-codegen-cli/package.json b/packages/graphql-codegen-cli/package.json
index ec0fda1f737..437203517c3 100644
--- a/packages/graphql-codegen-cli/package.json
+++ b/packages/graphql-codegen-cli/package.json
@@ -61,6 +61,7 @@
     "debounce": "^1.2.0",
     "dependency-graph": "^0.11.0",
     "detect-indent": "^6.0.0",
+    "fs-extra": "^9.1.0",
     "glob": "^7.1.6",
     "graphql-config": "^3.2.0",
     "indent-string": "^4.0.0",
@@ -72,7 +73,6 @@
     "listr-update-renderer": "^0.5.0",
     "log-symbols": "^4.0.0",
     "minimatch": "^3.0.4",
-    "mkdirp": "^1.0.4",
     "string-env-interpolation": "^1.0.1",
     "ts-log": "^2.2.3",
     "tslib": "~2.1.0",
@@ -92,7 +92,6 @@
     "@types/listr": "0.14.2",
     "@types/log-symbols": "3.0.0",
     "@types/minimatch": "3.0.3",
-    "@types/mkdirp": "1.0.1",
     "@types/valid-url": "1.0.3",
     "bdd-stdin": "0.2.0",
     "dotenv": "8.2.0",
diff --git a/packages/graphql-codegen-cli/src/generate-and-save.ts b/packages/graphql-codegen-cli/src/generate-and-save.ts
index dd06a051eda..80dd022b08e 100644
--- a/packages/graphql-codegen-cli/src/generate-and-save.ts
+++ b/packages/graphql-codegen-cli/src/generate-and-save.ts
@@ -2,8 +2,8 @@ import { lifecycleHooks } from './hooks';
 import { Types } from '@graphql-codegen/plugin-helpers';
 import { executeCodegen } from './codegen';
 import { createWatcher } from './utils/watcher';
-import { fileExists, readSync, writeSync, unlinkFile } from './utils/file-system';
-import { sync as mkdirpSync } from 'mkdirp';
+import { fileExists, readFile, writeFile, unlinkFile } from './utils/file-system';
+import { mkdirp } from 'fs-extra';
 import { dirname, join, isAbsolute } from 'path';
 import { debugLog } from './utils/debugging';
 import { CodegenContext, ensureContext } from './config';
@@ -26,7 +26,7 @@ export async function generate(
     const staleFilenames = previouslyGeneratedFilenames.filter(f => !filenames.includes(f));
     staleFilenames.forEach(filename => {
       if (shouldOverwrite(config, filename)) {
-        unlinkFile(filename, err => {
+        return unlinkFile(filename, err => {
           const prettyFilename = filename.replace(`${input.cwd || process.cwd()}/`, '');
           if (err) {
             debugLog(`Cannot remove stale file: ${prettyFilename}\n${err}`);
@@ -53,7 +53,7 @@ export async function generate(
 
     await Promise.all(
       generationResult.map(async (result: Types.FileOutput) => {
-        const exists = fileExists(result.filename);
+        const exists = await fileExists(result.filename);
 
         if (!shouldOverwrite(config, result.filename) && exists) {
           return;
@@ -64,7 +64,7 @@ export async function generate(
         let previousHash = recentOutputHash.get(result.filename);
 
         if (!previousHash && exists) {
-          previousHash = hash(readSync(result.filename));
+          previousHash = hash(await readFile(result.filename));
         }
 
         if (previousHash && currentHash === previousHash) {
@@ -81,11 +81,11 @@ export async function generate(
         const basedir = dirname(result.filename);
         await lifecycleHooks(result.hooks).beforeOneFileWrite(result.filename);
         await lifecycleHooks(config.hooks).beforeOneFileWrite(result.filename);
-        mkdirpSync(basedir);
+        await mkdirp(basedir);
         const absolutePath = isAbsolute(result.filename)
           ? result.filename
           : join(input.cwd || process.cwd(), result.filename);
-        writeSync(absolutePath, result.content);
+        await writeFile(absolutePath, result.content);
         await lifecycleHooks(result.hooks).afterOneFileWrite(result.filename);
         await lifecycleHooks(config.hooks).afterOneFileWrite(result.filename);
       })
diff --git a/packages/graphql-codegen-cli/src/utils/file-system.ts b/packages/graphql-codegen-cli/src/utils/file-system.ts
index 6c9384e3228..b1fdc54a5c5 100644
--- a/packages/graphql-codegen-cli/src/utils/file-system.ts
+++ b/packages/graphql-codegen-cli/src/utils/file-system.ts
@@ -1,21 +1,21 @@
-import { writeFileSync, statSync, readFileSync, unlink } from 'fs';
+import { writeFile as fsWriteFile, stat as fsStat, readFile as fsReadFile, unlink as fsUnlink } from 'fs-extra';
 
-export function writeSync(filepath: string, content: string) {
-  return writeFileSync(filepath, content);
+export function writeFile(filepath: string, content: string) {
+  return fsWriteFile(filepath, content);
 }
 
-export function readSync(filepath: string) {
-  return readFileSync(filepath, 'utf-8');
+export function readFile(filepath: string) {
+  return fsReadFile(filepath, 'utf-8');
 }
 
-export function fileExists(filePath: string): boolean {
+export async function fileExists(filePath: string): Promise<boolean> {
   try {
-    return statSync(filePath).isFile();
+    return (await fsStat(filePath)).isFile();
   } catch (err) {
     return false;
   }
 }
 
 export function unlinkFile(filePath: string, cb?: (err?: Error) => any): void {
-  unlink(filePath, cb);
+  fsUnlink(filePath, cb);
 }
diff --git a/packages/graphql-codegen-cli/tests/generate-and-save.spec.ts b/packages/graphql-codegen-cli/tests/generate-and-save.spec.ts
index 632b86b45da..1533ed40edb 100644
--- a/packages/graphql-codegen-cli/tests/generate-and-save.spec.ts
+++ b/packages/graphql-codegen-cli/tests/generate-and-save.spec.ts
@@ -21,7 +21,7 @@ describe('generate-and-save', () => {
 
   test('allow to specify overwrite for specific output (should write file)', async () => {
     const filename = 'overwrite.ts';
-    const writeSpy = jest.spyOn(fs, 'writeSync').mockImplementation();
+    const writeSpy = jest.spyOn(fs, 'writeFile').mockImplementation();
 
     const output = await generate(
       {
@@ -47,10 +47,10 @@ describe('generate-and-save', () => {
 
   test('allow to specify overwrite for specific output (should not write file)', async () => {
     const filename = 'overwrite.ts';
-    const writeSpy = jest.spyOn(fs, 'writeSync').mockImplementation();
+    const writeSpy = jest.spyOn(fs, 'writeFile').mockImplementation();
     // forces file to exist
     const fileExistsSpy = jest.spyOn(fs, 'fileExists');
-    fileExistsSpy.mockImplementation(file => file === filename);
+    fileExistsSpy.mockImplementation(async file => file === filename);
 
     const output = await generate(
       {
@@ -78,7 +78,7 @@ describe('generate-and-save', () => {
 
   test('should use global overwrite option and write a file', async () => {
     const filename = 'overwrite.ts';
-    const writeSpy = jest.spyOn(fs, 'writeSync').mockImplementation();
+    const writeSpy = jest.spyOn(fs, 'writeFile').mockImplementation();
 
     const output = await generate(
       {
@@ -103,10 +103,10 @@ describe('generate-and-save', () => {
 
   test('should use global overwrite option and not write a file', async () => {
     const filename = 'overwrite.ts';
-    const writeSpy = jest.spyOn(fs, 'writeSync').mockImplementation();
+    const writeSpy = jest.spyOn(fs, 'writeFile').mockImplementation();
     // forces file to exist
     const fileExistsSpy = jest.spyOn(fs, 'fileExists');
-    fileExistsSpy.mockImplementation(file => file === filename);
+    fileExistsSpy.mockImplementation(async file => file === filename);
 
     const output = await generate(
       {
@@ -133,12 +133,12 @@ describe('generate-and-save', () => {
 
   test('should overwrite a file by default', async () => {
     const filename = 'overwrite.ts';
-    const writeSpy = jest.spyOn(fs, 'writeSync').mockImplementation();
-    const readSpy = jest.spyOn(fs, 'readSync').mockImplementation();
-    readSpy.mockImplementation(_f => '');
+    const writeSpy = jest.spyOn(fs, 'writeFile').mockImplementation();
+    const readSpy = jest.spyOn(fs, 'readFile').mockImplementation();
+    readSpy.mockImplementation(async _f => '');
     // forces file to exist
     const fileExistsSpy = jest.spyOn(fs, 'fileExists');
-    fileExistsSpy.mockImplementation(file => file === filename);
+    fileExistsSpy.mockImplementation(async file => file === filename);
 
     const output = await generate(
       {
@@ -195,7 +195,7 @@ describe('generate-and-save', () => {
   });
   test('should extract a document from the gql tag (imported from apollo-server)', async () => {
     const filename = 'overwrite.ts';
-    const writeSpy = jest.spyOn(fs, 'writeSync').mockImplementation();
+    const writeSpy = jest.spyOn(fs, 'writeFile').mockImplementation();
 
     const output = await generate(
       {
diff --git a/yarn.lock b/yarn.lock
index b0e612d25d1..d792f9deaa9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9797,7 +9797,7 @@ fs-extra@9.0.1, fs-extra@^9.0.1:
     jsonfile "^6.0.1"
     universalify "^1.0.0"
 
-fs-extra@9.1.0:
+fs-extra@9.1.0, fs-extra@^9.1.0:
   version "9.1.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-9.1.0.tgz#5954460c764a8da2094ba3554bf839e6b9a7c86d"
   integrity sha512-hcg3ZmepS30/7BSFqRvoo3DOMQu7IjqxO5nCDt+zM9XWjb33Wg7ziNT+Qvqbuc3+gWpzO02JubVyk2G4Zvo1OQ==