diff --git a/docs/document/server-side/message_historical.md b/docs/document/server-side/message_historical.md
index 6548635a..4fa2ceb7 100644
--- a/docs/document/server-side/message_historical.md
+++ b/docs/document/server-side/message_historical.md
@@ -389,7 +389,7 @@ curl -X GET -H 'Accept: application/json' -H 'Authorization: Bearer <YourAppToke
       "subType": "sub_combine",
       "summary": ":yyuu\n:[图片]\n:[文件]\n",
       "title": "聊天记录",
-      "url": "https://a1-hsb.easemob.com/sandbox-dee1/wdtest/chatfiles/6bf39390-8aba-11ef-a8ae-6f545c50ca23"
+      "url": "https://XXXX/XXXX/XXXX/chatfiles/6bf39390-8aba-11ef-a8ae-6f545c50ca23"
     }
 ]
 ```