diff --git a/tests/test_api/test_methods/test_delete_my_commands.py b/tests/test_api/test_methods/test_delete_my_commands.py
index a52ff172..a39d080b 100644
--- a/tests/test_api/test_methods/test_delete_my_commands.py
+++ b/tests/test_api/test_methods/test_delete_my_commands.py
@@ -1,6 +1,6 @@
 import pytest
 
-from aiogram.methods import BanChatMember, Request, DeleteMyCommands
+from aiogram.methods import BanChatMember, DeleteMyCommands, Request
 from tests.mocked_bot import MockedBot
 
 
diff --git a/tests/test_api/test_methods/test_get_chat_administrators.py b/tests/test_api/test_methods/test_get_chat_administrators.py
index b7326bab..f6de6db5 100644
--- a/tests/test_api/test_methods/test_get_chat_administrators.py
+++ b/tests/test_api/test_methods/test_get_chat_administrators.py
@@ -3,7 +3,7 @@ from typing import List
 import pytest
 
 from aiogram.methods import GetChatAdministrators, Request
-from aiogram.types import ChatMember, User, ChatMemberOwner
+from aiogram.types import ChatMember, ChatMemberOwner, User
 from tests.mocked_bot import MockedBot
 
 
@@ -14,7 +14,9 @@ class TestGetChatAdministrators:
             GetChatAdministrators,
             ok=True,
             result=[
-                ChatMemberOwner(user=User(id=42, is_bot=False, first_name="User"), is_anonymous=False)
+                ChatMemberOwner(
+                    user=User(id=42, is_bot=False, first_name="User"), is_anonymous=False
+                )
             ],
         )
 
@@ -29,7 +31,9 @@ class TestGetChatAdministrators:
             GetChatAdministrators,
             ok=True,
             result=[
-                ChatMemberOwner(user=User(id=42, is_bot=False, first_name="User"), is_anonymous=False)
+                ChatMemberOwner(
+                    user=User(id=42, is_bot=False, first_name="User"), is_anonymous=False
+                )
             ],
         )
         response: List[ChatMember] = await bot.get_chat_administrators(chat_id=-42)
diff --git a/tests/test_api/test_methods/test_get_chat_member.py b/tests/test_api/test_methods/test_get_chat_member.py
index abb67fe2..4018433e 100644
--- a/tests/test_api/test_methods/test_get_chat_member.py
+++ b/tests/test_api/test_methods/test_get_chat_member.py
@@ -1,7 +1,7 @@
 import pytest
 
 from aiogram.methods import GetChatMember, Request
-from aiogram.types import ChatMember, User, ChatMemberOwner
+from aiogram.types import ChatMember, ChatMemberOwner, User
 from tests.mocked_bot import MockedBot
 
 
@@ -11,7 +11,9 @@ class TestGetChatMember:
         prepare_result = bot.add_result_for(
             GetChatMember,
             ok=True,
-            result=ChatMemberOwner(user=User(id=42, is_bot=False, first_name="User"), is_anonymous=False),
+            result=ChatMemberOwner(
+                user=User(id=42, is_bot=False, first_name="User"), is_anonymous=False
+            ),
         )
 
         response: ChatMember = await GetChatMember(chat_id=-42, user_id=42)
@@ -24,7 +26,9 @@ class TestGetChatMember:
         prepare_result = bot.add_result_for(
             GetChatMember,
             ok=True,
-            result=ChatMemberOwner(user=User(id=42, is_bot=False, first_name="User"), is_anonymous=False),
+            result=ChatMemberOwner(
+                user=User(id=42, is_bot=False, first_name="User"), is_anonymous=False
+            ),
         )
 
         response: ChatMember = await bot.get_chat_member(chat_id=-42, user_id=42)
diff --git a/tests/test_dispatcher/test_dispatcher.py b/tests/test_dispatcher/test_dispatcher.py
index a7e43d20..5bcbd9f6 100644
--- a/tests/test_dispatcher/test_dispatcher.py
+++ b/tests/test_dispatcher/test_dispatcher.py
@@ -508,15 +508,15 @@ class TestDispatcher:
             return middleware
 
         async def handler(event, foo, bar, baz, fizz, buzz):
-            counter['child.handler'] += 1
+            counter["child.handler"] += 1
 
         root = Dispatcher()
         child = Router()
 
-        root.message.outer_middleware(mw('root.outer_middleware', {'foo': True}))
-        root.message.middleware(mw('root.middleware', {'bar': None}))
-        child.message.outer_middleware(mw('child.outer_middleware', {'fizz': 42}))
-        child.message.middleware(mw('child.middleware', {'buzz': -42}))
+        root.message.outer_middleware(mw("root.outer_middleware", {"foo": True}))
+        root.message.middleware(mw("root.middleware", {"bar": None}))
+        child.message.outer_middleware(mw("child.outer_middleware", {"fizz": 42}))
+        child.message.middleware(mw("child.middleware", {"buzz": -42}))
         child.message.register(handler)
 
         root.include_router(child)
@@ -527,17 +527,17 @@ class TestDispatcher:
                 message=Message(
                     message_id=42,
                     date=datetime.datetime.fromtimestamp(0),
-                    chat=Chat(id=-42, type='group'),
+                    chat=Chat(id=-42, type="group"),
                 ),
             ),
             baz=...,
         )
 
-        assert counter['root.outer_middleware'] == 2
-        assert counter['root.middleware'] == 1
-        assert counter['child.outer_middleware'] == 1
-        assert counter['child.middleware'] == 1
-        assert counter['child.handler'] == 1
+        assert counter["root.outer_middleware"] == 2
+        assert counter["root.middleware"] == 1
+        assert counter["child.outer_middleware"] == 1
+        assert counter["child.middleware"] == 1
+        assert counter["child.handler"] == 1
 
     @pytest.mark.asyncio
     async def test_process_update_call_request(self, bot: MockedBot):
diff --git a/tests/test_dispatcher/test_handler/test_chat_member.py b/tests/test_dispatcher/test_handler/test_chat_member.py
index c536a57c..8b4ffe2c 100644
--- a/tests/test_dispatcher/test_handler/test_chat_member.py
+++ b/tests/test_dispatcher/test_handler/test_chat_member.py
@@ -14,12 +14,8 @@ class TestChatMemberUpdated:
             chat=Chat(id=42, type="private"),
             from_user=User(id=42, is_bot=False, first_name="Test"),
             date=datetime.datetime.now(),
-            old_chat_member=ChatMemberMember(
-                user=User(id=42, is_bot=False, first_name="Test")
-            ),
-            new_chat_member=ChatMemberMember(
-                user=User(id=42, is_bot=False, first_name="Test")
-            ),
+            old_chat_member=ChatMemberMember(user=User(id=42, is_bot=False, first_name="Test")),
+            new_chat_member=ChatMemberMember(user=User(id=42, is_bot=False, first_name="Test")),
         )
 
         class MyHandler(ChatMemberHandler):