diff --git a/HttpServer/Events/OnManagerStart.php b/HttpServer/Events/OnManagerStart.php
index d90352ea..11ef4c57 100644
--- a/HttpServer/Events/OnManagerStart.php
+++ b/HttpServer/Events/OnManagerStart.php
@@ -9,8 +9,6 @@ use HttpServer\Abstracts\Callback;
 use Snowflake\Abstracts\Config;
 use Snowflake\Event;
 use Snowflake\Snowflake;
-use Swoole\Coroutine;
-use Swoole\Process;
 use Swoole\Server;