diff --git a/__mocks__/fs/promises.js b/__mocks__/fs/promises.js
deleted file mode 100644
index 1a58f0f013ac..000000000000
--- a/__mocks__/fs/promises.js
+++ /dev/null
@@ -1,3 +0,0 @@
-const {fs} = require('memfs');
-
-module.exports = fs.promises;
diff --git a/__mocks__/fs/promises.ts b/__mocks__/fs/promises.ts
new file mode 100644
index 000000000000..b831fffcefb8
--- /dev/null
+++ b/__mocks__/fs/promises.ts
@@ -0,0 +1,8 @@
+import {fs} from 'memfs';
+import type {FsPromisesApi} from 'memfs/lib/node/types';
+
+type PromisesMock = FsPromisesApi;
+
+const promisesMock: PromisesMock = fs.promises;
+
+export default promisesMock;