diff --git a/app/api/service/passport/Login.php b/app/api/service/passport/Login.php
index 425922b6..3f7448d8 100644
--- a/app/api/service/passport/Login.php
+++ b/app/api/service/passport/Login.php
@@ -24,7 +24,6 @@ use app\common\enum\Setting as SettingEnum;
 use app\common\service\BaseService;
 use cores\exception\BaseException;
 use think\facade\Cache;
-use yiovo\captcha\facade\CaptchaApi;
 
 /**
  * 服务类：用户登录
@@ -330,7 +329,10 @@ class Login extends BaseService
             return;
         }
         // 推荐人ID
-        $refereeId = !empty($data['refereeId']) ?? null;
+        $refereeId = 0;
+        if (!empty($data['refereeId'])) {
+            $refereeId = intval($data['refereeId']);
+        }
         // 用户不存在: 创建一个新用户
         $this->createUser($data['mobile'], $data['isParty'], $data['partyData'], $refereeId);
     }