diff --git a/src/SwooleHttpResponseEmitter.php b/src/SwooleHttpResponseEmitter.php
index e1d4c5e..98d5f33 100644
--- a/src/SwooleHttpResponseEmitter.php
+++ b/src/SwooleHttpResponseEmitter.php
@@ -3,16 +3,13 @@ declare(strict_types=1);
 
 namespace Kiri\Router;
 
-use Kiri\Di\Inject\Container;
 use Kiri\Di\Interface\ResponseEmitterInterface;
 use Kiri\Events\EventDispatch;
 use Kiri\Events\EventProvider;
 use Kiri\Server\Events\OnAfterRequest;
-use Psr\Container\ContainerExceptionInterface;
-use Psr\Container\NotFoundExceptionInterface;
 use Psr\Http\Message\ResponseInterface;
-use ReflectionException;
 use SplPriorityQueue;
+use function swoole_version;
 
 
 /**
@@ -69,6 +66,7 @@ class SwooleHttpResponseEmitter implements ResponseEmitterInterface
      */
     private function writeParams(ResponseInterface $proxy, object $response, object $request): void
     {
+        /** @var \Swoole\Http\Response $response */
         $response->setStatusCode($proxy->getStatusCode());
         $headers = $proxy->getHeaders();
         if (count($headers) > 0) foreach ($headers as $name => $header) {
@@ -78,9 +76,9 @@ class SwooleHttpResponseEmitter implements ResponseEmitterInterface
         if (count($cookieParams) > 0) foreach ($cookieParams as $cookie) {
             $response->setCookie(...$cookie);
         }
-        $response->header('Run-Time', $this->getRunTime($request));
+        $response->header('Run-Time', $this->getRunTime($request) . '');
         $response->header('Server', 'swoole');
-        $response->header('Swoole-Version', \swoole_version());
+        $response->header('Swoole-Version', swoole_version());
     }