diff --git a/app/server/server.php b/app/server/server.php
index 94e409e..5d909cf 100644
--- a/app/server/server.php
+++ b/app/server/server.php
@@ -9,10 +9,7 @@ use Psr\Http\Message\ServerRequestInterface as Request;
 
 $app = Bootstrap::init();
 
-$http = new HttpServer(function (Request $request) use ($app) {
-    return $app->handle($request);
-});
-
+$http = new HttpServer(fn (Request $request) => $app->handle($request));
 $address = "127.0.0.1:8000";
 $socket = new SocketServer($address);
 $http->listen($socket);