diff --git a/__tests__/tar.test.ts b/__tests__/tar.test.ts
index 9a3f0a6..4aed759 100644
--- a/__tests__/tar.test.ts
+++ b/__tests__/tar.test.ts
@@ -5,7 +5,7 @@ import {CacheFilename, CompressionMethod} from '../src/internal/constants'
 import * as tar from '../src/internal/tar'
 import * as utils from '../src/internal/cacheUtils'
 // eslint-disable-next-line @typescript-eslint/no-require-imports
-import * as fs from 'fs'
+import fs = require('fs')
 
 jest.mock('@actions/exec')
 jest.mock('@actions/io')