diff --git a/services/stat/client.go b/services/stat/client.go
index bfd3c5f..4338705 100644
--- a/services/stat/client.go
+++ b/services/stat/client.go
@@ -153,9 +153,7 @@ func (c *Client) SetSiteKey(req *SetSiteKeyReq) (resp *SetSiteKeyResp, err error
 
 // CallbackWeightUpdate 回调权重更新
 func (c *Client) CallbackWeightUpdate(req *CallbackWeightUpdateReq) (resp *CallbackWeightUpdateResp, err error) {
-	resp = &CallbackWeightUpdateResp{
-		BaseResponse: &responses.BaseResponse{},
-	}
+	resp = CreateCallbackWeightUpdateResp()
 	err = c.DoAction(req, resp)
 	return
 }