diff --git a/dev/src/payload.config.ts b/dev/src/payload.config.ts
index 9db620f9c4..f6e792b140 100644
--- a/dev/src/payload.config.ts
+++ b/dev/src/payload.config.ts
@@ -66,8 +66,6 @@ export default buildConfig({
           alias: {
             ...(config.resolve.alias || {}),
             react: path.resolve(__dirname, '../node_modules/react'),
-            fs: path.resolve(__dirname, 'mocks/fileStub.js'),
-            util: path.resolve(__dirname, 'mocks/promisifyMock.js'),
             '@azure/storage-blob': path.resolve(__dirname, '../../src/adapters/azure/mock.js'),
             '@aws-sdk/client-s3': path.resolve(__dirname, '../../src/adapters/s3/mock.js'),
             '@google-cloud/storage': path.resolve(__dirname, '../../src/adapters/gcs/mock.js'),
diff --git a/src/adapters/s3/fileStub.js b/src/adapters/s3/fileStub.js
new file mode 100644
index 0000000000..e25c9a3dc4
--- /dev/null
+++ b/src/adapters/s3/fileStub.js
@@ -0,0 +1 @@
+export default 'file-stub'
diff --git a/src/adapters/s3/webpack.ts b/src/adapters/s3/webpack.ts
index 2717f295c9..ef6f36baa7 100644
--- a/src/adapters/s3/webpack.ts
+++ b/src/adapters/s3/webpack.ts
@@ -10,6 +10,7 @@ export const extendWebpackConfig = (existingWebpackConfig: WebpackConfig): Webpa
         ...(existingWebpackConfig.resolve?.alias ? existingWebpackConfig.resolve.alias : {}),
         '@aws-sdk/client-s3': path.resolve(__dirname, './mock.js'),
         '@aws-sdk/lib-storage': path.resolve(__dirname, './mock.js'),
+        fs: path.resolve(__dirname, './fileStub.js'),
       },
     },
   }