diff --git a/pyrogram/client/ext/utils.py b/pyrogram/client/ext/utils.py
index e687ced1..a8b5b07b 100644
--- a/pyrogram/client/ext/utils.py
+++ b/pyrogram/client/ext/utils.py
@@ -917,7 +917,7 @@ async def parse_callback_query(client, update, users):
         message=message,
         inline_message_id=inline_message_id,
         chat_instance=str(update.chat_instance),
-        data=update.data.decode(),
+        data=update.data,
         game_short_name=update.game_short_name,
         client=client
     )
diff --git a/pyrogram/client/types/bots/callback_query.py b/pyrogram/client/types/bots/callback_query.py
index 843a9bb8..447d13ea 100644
--- a/pyrogram/client/types/bots/callback_query.py
+++ b/pyrogram/client/types/bots/callback_query.py
@@ -60,7 +60,7 @@ class CallbackQuery(Object):
             client=None,
             message=None,
             inline_message_id: str = None,
-            data: str = None,
+            data: bytes = None,
             game_short_name: str = None
     ):
         self._client = client