diff --git a/src/Common/Utils.php b/src/Common/Utils.php
index 4e32495..497a0e2 100644
--- a/src/Common/Utils.php
+++ b/src/Common/Utils.php
@@ -2,8 +2,6 @@
 
 namespace Discuz\Common;
 
-use Psr\Http\Message\ServerRequestInterface;
-
 /**
  * Copyright (C) 2020 Tencent Cloud.
  *