diff --git a/aiogram/utils/chat_action.py b/aiogram/utils/chat_action.py
index a2f3b465..6ae844ee 100644
--- a/aiogram/utils/chat_action.py
+++ b/aiogram/utils/chat_action.py
@@ -349,12 +349,10 @@ class ChatActionMiddleware(BaseMiddleware):
 
     async def __call__(
         self,
-        handler: Callable[[TelegramObject, Dict[str, Any]], Awaitable[Any]],
-        event: TelegramObject,
+        handler: Callable[[Message, Dict[str, Any]], Awaitable[Any]],
+        event: Message,
         data: Dict[str, Any],
     ) -> Any:
-        if not isinstance(event, Message):
-            return await handler(event, data)
         bot = data["bot"]
 
         chat_action = get_flag(data, "chat_action") or "typing"