diff --git a/app/api/service/UserServer.php b/app/api/service/UserServer.php
index ac2544b..5f35e0c 100644
--- a/app/api/service/UserServer.php
+++ b/app/api/service/UserServer.php
@@ -53,7 +53,7 @@ class UserServer
             $avatar_url = $response['headimgurl'] ?? '';
             $nickname = $response['nickname'] ?? '';
 
-            Db::startTrans();
+            (new \think\Db)->startTrans();
 
             // 获取存储引擎
             $config = [