diff --git a/app/task.py b/app/task.py
index 2bc0745..87e9fd6 100644
--- a/app/task.py
+++ b/app/task.py
@@ -132,7 +132,7 @@ def process_message_callback(
 
     record["问题概述"] = "\n".join(message_content_data)
 
-    for message_dict in message_images_data.items():
+    for message_dict in message_images_data:
         image_path = get_message_resource(
             client,
             message_dict.get("message_id"),