diff --git a/packages/trpc/tests/routers/extension.spec.ts b/packages/trpc/tests/routers/extension.spec.ts
index e928b5bb4..e03a5ab94 100644
--- a/packages/trpc/tests/routers/extension.spec.ts
+++ b/packages/trpc/tests/routers/extension.spec.ts
@@ -1,10 +1,21 @@
-import { describe, expect, it } from 'vitest';
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import { getTrpcCaller } from '../test-helpers';
+import { anonymousSignIn, deleteFirebaseUser, FirebaseUser } from '../firebase';
 
 describe('extension router test', () => {
-  const caller = getTrpcCaller();
+  let user: FirebaseUser;
+
+  beforeAll(async () => {
+    const userCredential = await anonymousSignIn();
+    user = userCredential.user;
+  });
+
+  afterAll(async () => {
+    await deleteFirebaseUser(user);
+  });
 
   it('should have expected response', async () => {
+    const caller = getTrpcCaller();
     const output = await caller.extension.latest();
     expect(output).toEqual(
       expect.objectContaining({