diff --git a/Html/apps/services/course_services/learning_progess_process.py b/Html/apps/services/course_services/learning_progess_process.py
index 9aeca9e..ea03fb2 100644
--- a/Html/apps/services/course_services/learning_progess_process.py
+++ b/Html/apps/services/course_services/learning_progess_process.py
@@ -192,7 +192,7 @@ def upload_learning_progress_to_cloud(progress: Dict) -> Dict:
         from ...utils.json_serializer import json_serialize_dict
         
         # 序列化进度数据，处理datetime等特殊类型
-        serialized_progress = json_serialize_dict(progress)
+        serialized_progress = json_serialize_dict(progress['multiagents_dialogs'])
         
         # 构建请求参数
         payload = {