diff --git a/docs/migration_2_to_3.rst b/docs/migration_2_to_3.rst
index 279dc3ff..93228c4d 100644
--- a/docs/migration_2_to_3.rst
+++ b/docs/migration_2_to_3.rst
@@ -136,7 +136,7 @@ Webhook
 
 
 Telegram API Server
-=======
+===================
 
 - `server` param was moved from `Bot` instance to `api` in `BaseSession`.
 - `aiogram.bot.api.TELEGRAM_PRODUCTION` was moved to `aiogram.client.telegram.PRODUCTION`.