diff --git a/tests/test_dependency_yield_scope_websockets.py b/tests/test_dependency_yield_scope_websockets.py
index 2bf9b19d4..52a30ae7a 100644
--- a/tests/test_dependency_yield_scope_websockets.py
+++ b/tests/test_dependency_yield_scope_websockets.py
@@ -15,7 +15,7 @@ class Session:
         self.open = True
 
 
-def dep_session() -> Any:
+async def dep_session() -> Any:
     s = Session()
     yield s
     s.open = False