diff --git a/aiogram/dispatcher/dispatcher.py b/aiogram/dispatcher/dispatcher.py
index f4e6b340..da68158d 100644
--- a/aiogram/dispatcher/dispatcher.py
+++ b/aiogram/dispatcher/dispatcher.py
@@ -309,9 +309,9 @@ class Dispatcher(Router):
         :return:
         """
         async for update in self._listen_updates(
-            bot, 
-            polling_timeout=polling_timeout, 
-            backoff_config=backoff_config, 
+            bot,
+            polling_timeout=polling_timeout,
+            backoff_config=backoff_config,
             allowed_updates=allowed_updates,
         ):
             handle_update = self._process_update(bot=bot, update=update, **kwargs)
diff --git a/aiogram/utils/handlers_in_use.py b/aiogram/utils/handlers_in_use.py
index 324feaf1..d7b26217 100644
--- a/aiogram/utils/handlers_in_use.py
+++ b/aiogram/utils/handlers_in_use.py
@@ -5,8 +5,8 @@ from typing import List, cast
 from aiogram.dispatcher.dispatcher import Dispatcher
 
 AIOGRAM_INTERNAL_HANDLERS = [
-    'update', 
-    'error', 
+    'update',
+    'error',
 ]