diff --git a/Handler/OnServerWorker.php b/Handler/OnServerWorker.php
index 3058293..0536e0b 100644
--- a/Handler/OnServerWorker.php
+++ b/Handler/OnServerWorker.php
@@ -19,7 +19,6 @@ use Psr\Container\ContainerExceptionInterface;
 use Psr\Container\NotFoundExceptionInterface;
 use ReflectionException;
 use Swoole\Server;
-use Swoole\Timer;
 
 
 /**