diff --git a/examples/specify_updates.py b/examples/specify_updates.py
index f47ae6b7..33fdd093 100644
--- a/examples/specify_updates.py
+++ b/examples/specify_updates.py
@@ -13,38 +13,43 @@ dp = Dispatcher()
 logger = logging.getLogger(__name__)
 logging.basicConfig(level=logging.INFO)
 
+
 @dp.message(commands={"start"})
 async def command_start_handler(message: Message) -> None:
     """
     This handler receive messages with `/start` command
     """
 
-    await message.answer(f"Hello, <b>{message.from_user.full_name}!</b>", 
+    await message.answer(
+        f"Hello, <b>{message.from_user.full_name}!</b>",
         reply_markup=InlineKeyboardMarkup(
-            inline_keyboard=[
-                [
-                    InlineKeyboardButton(text="Tap me, bro", callback_data="*")
-                ]
-            ]
-        )
+            inline_keyboard=[[InlineKeyboardButton(text="Tap me, bro", callback_data="*")]]
+        ),
     )
 
 
 @dp.chat_member()
 async def chat_member_update(chat_member: ChatMemberUpdated, bot: Bot) -> None:
-    await bot.send_message(chat_member.chat.id, "Member {chat_member.from_user.id} was changed "
-    + f"from {chat_member.old_chat_member.is_chat_member} to {chat_member.new_chat_member.is_chat_member}")
+    await bot.send_message(
+        chat_member.chat.id,
+        "Member {chat_member.from_user.id} was changed "
+        + f"from {chat_member.old_chat_member.is_chat_member} to {chat_member.new_chat_member.is_chat_member}",
+    )
+
 
 # this router will use only callback_query updates
 sub_router = Router()
 
+
 @sub_router.callback_query()
 async def callback_tap_me(callback_query: CallbackQuery) -> None:
     await callback_query.answer("Yeah good, now i'm fine")
 
+
 # this router will use only edited_message updates
 sub_sub_router = Router()
 
+
 @sub_sub_router.edited_message()
 async def callback_tap_me(edited_message: Message) -> None:
     await edited_message.reply("Message was edited, big brother watch you")
@@ -53,10 +58,14 @@ async def callback_tap_me(edited_message: Message) -> None:
 # this router will use only my_chat_member updates
 deep_dark_router = Router()
 
+
 @deep_dark_router.my_chat_member()
 async def my_chat_member_change(chat_member: ChatMemberUpdated, bot: Bot) -> None:
-    await bot.send_message(chat_member.chat.id, "Member was changed from "
-    + f"{chat_member.old_chat_member.is_chat_member} to {chat_member.new_chat_member.is_chat_member}")
+    await bot.send_message(
+        chat_member.chat.id,
+        "Member was changed from "
+        + f"{chat_member.old_chat_member.is_chat_member} to {chat_member.new_chat_member.is_chat_member}",
+    )
 
 
 def main() -> None:
@@ -71,10 +80,7 @@ def main() -> None:
     useful_updates = get_handlers_in_use(dp)
 
     # And the run events dispatching
-    dp.run_polling(
-        bot,
-        allowed_updates=useful_updates
-    )
+    dp.run_polling(bot, allowed_updates=useful_updates)
 
 
 if __name__ == "__main__":