diff --git a/pyrogram/session/session.py b/pyrogram/session/session.py
index 6a7fc505..3ce96a8f 100644
--- a/pyrogram/session/session.py
+++ b/pyrogram/session/session.py
@@ -149,6 +149,8 @@ class Session:
     async def stop(self):
         self.is_started.clear()
 
+        self.stored_msg_ids.clear()
+
         self.ping_task_event.set()
 
         if self.ping_task is not None: