diff --git a/aiogram/fsm/storage/mongo.py b/aiogram/fsm/storage/mongo.py
index b44aeeb9..8146d15f 100644
--- a/aiogram/fsm/storage/mongo.py
+++ b/aiogram/fsm/storage/mongo.py
@@ -15,6 +15,12 @@ from aiogram.fsm.storage.base import (
 
 class MongoStorage(BaseStorage):
     """
+
+    .. warning::
+        DEPRECATED: Use :class:`PyMongoStorage` instead.
+        This class will be removed in future versions.
+
+    
     MongoDB storage required :code:`motor` package installed (:code:`pip install motor`)
     """