diff --git a/antisticker.py b/antisticker.py
index e04db45..0866792 100644
--- a/antisticker.py
+++ b/antisticker.py
@@ -19,8 +19,9 @@ async def auto_remove_sticker(context):
             return
         if context.chat_id > 0:
             return
-        if context.sender.bot:
-            return
+        if context.sender:
+            if context.sender.bot:
+                return
     else:
         return
 
diff --git a/list.json b/list.json
index 2ed2fbd..4177be3 100644
--- a/list.json
+++ b/list.json
@@ -752,7 +752,7 @@
         },
         {
             "name": "antisticker",
-            "version": "1.0",
+            "version": "1.01",
             "section": "chat",
             "maintainer": "xtaodada",
             "size": "0.7 kb",