diff --git a/fastapi/dependencies/utils.py b/fastapi/dependencies/utils.py
index 393541405..4e3c82684 100644
--- a/fastapi/dependencies/utils.py
+++ b/fastapi/dependencies/utils.py
@@ -66,7 +66,7 @@ from typing_extensions import Annotated, get_args, get_origin
 
 try:
     from typing_extensions import TypeAliasType
-except ImportError:
+except ImportError:  # pragma: no cover
     TypeAliasType = None  # type: ignore[misc,assignment]