diff --git a/tests/test_form_default.py b/tests/test_form_default.py
index 1c42bb401..f31c92ecf 100644
--- a/tests/test_form_default.py
+++ b/tests/test_form_default.py
@@ -1,4 +1,4 @@
-from typing import Annotated, Optional
+from typing_extensions import Annotated, Optional
 
 from fastapi import FastAPI, File, Form
 from starlette.testclient import TestClient