diff --git a/tests/test_request_params/test_query/test_free_form.py b/tests/test_request_params/test_query/test_free_form.py
index a12cf5392d..cfb555cf6c 100644
--- a/tests/test_request_params/test_query/test_free_form.py
+++ b/tests/test_request_params/test_query/test_free_form.py
@@ -155,7 +155,9 @@ def test_required_dict_union(path: str):
 
 
 @app.get("/required-dict-of-union")
-async def read_required_dict_of_union(p: Annotated[dict[str, Union[int, bool]], Query()]):
+async def read_required_dict_of_union(
+    p: Annotated[dict[str, Union[int, bool]], Query()],
+):
     return {"p": p}