diff --git a/http-helper/Server.php b/http-helper/Server.php
index 719190dc..43e2f604 100644
--- a/http-helper/Server.php
+++ b/http-helper/Server.php
@@ -12,7 +12,6 @@ use Kiri\Error\LoggerProcess;
 use Kiri\Events\EventDispatch;
 use Kiri\Exception\ConfigException;
 use Kiri\Exception\NotFindClassException;
-use Kiri\Process\Biomonitoring;
 use ReflectionException;
 use Server\Constant;
 use Server\Events\OnShutdown;