diff --git a/.flake8 b/.flake8
index 28472d4..2de01f9 100644
--- a/.flake8
+++ b/.flake8
@@ -3,6 +3,6 @@ per-file-ignores =
   *.py: E203, E301, E302, E305, E501
   *.pyi: E301, E302, E305, E501, E701, E741, F401, F403, F405, F822, Y037
   *_pb2.pyi: E301, E302, E305, E501, E701, E741, F401, F403, F405, F822, Y037, Y021
-  *_pb2_grpc.pyi: E301, E302, E305, E501, E701, E741, F401, F403, F405, F822, Y037, Y021
+  *_pb2_grpc.pyi: E301, E302, E305, E501, E701, E741, F401, F403, F405, F822, Y037, Y021, Y023
 
 extend_exclude = venv*,*_pb2.py,*_pb2_grpc.py,build/