diff --git a/app/core/wecomclient.py b/app/core/wecomclient.py
index 4457573..b4534c9 100644
--- a/app/core/wecomclient.py
+++ b/app/core/wecomclient.py
@@ -125,7 +125,7 @@ class WecomClient:
             url = "https://qyapi.weixin.qq.com/cgi-bin/message/send"
             params = {
                 "access_token": access_token,
-                "chatid": group_id,
+                "group_id": group_id,
                 "msgtype": "text",
                 "text": {
                     "content": f"""🥳 欢迎您进群，在群内可以享受📦【代取快递】跑腿服务。