diff --git a/gewechat/client/get_chatroom_members.py b/gewechat/client/get_chatroom_members.py
index 1caa840..bfb78f6 100644
--- a/gewechat/client/get_chatroom_members.py
+++ b/gewechat/client/get_chatroom_members.py
@@ -76,4 +76,4 @@ def send_file():
     print(response.text)
 
 if __name__ == '__main__':
-    send_file()
+    set_call_back()
diff --git a/gewechat/config.toml b/gewechat/config.toml
index 61ebd4d..e01583f 100644
--- a/gewechat/config.toml
+++ b/gewechat/config.toml
@@ -2,4 +2,4 @@
 base_url= "http://192.168.2.240:2531/v2/api"
 gewechat_token= "cb43f52db27e4a56bb6ec7da54373582"
 app_id="wx_3BC6eSHGE5xEm_hH3__7c"
-callback_url="http://192.168.2.210:8999/gewechat/message/callback"
+callback_url="http://192.168.2.212:8999/gewechat/message/callback"