diff --git a/composer.json b/composer.json
index d2c7326..4f01d6c 100644
--- a/composer.json
+++ b/composer.json
@@ -53,6 +53,7 @@
         "ergebnis/phpunit-slow-test-detector": "^2.14",
         "infection/infection": "^0.28|^0.29",
         "matthiasnoback/symfony-config-test": "^5.1",
+        "nelmio/security-bundle": "^3.0",
         "php-parallel-lint/php-parallel-lint": "^1.4",
         "phpstan/extension-installer": "^1.1",
         "phpstan/phpdoc-parser": "^1.28|^2.0",
diff --git a/src/Subscriber/PwaDevServerSubscriber.php b/src/Subscriber/PwaDevServerSubscriber.php
index 3ae55d3..df5f936 100644
--- a/src/Subscriber/PwaDevServerSubscriber.php
+++ b/src/Subscriber/PwaDevServerSubscriber.php
@@ -57,7 +57,8 @@ public function onKernelRequest(RequestEvent $event): void
 
     public function onKernelResponse(ResponseEvent $event): void
     {
-        $headers = $event->getResponse()->headers;
+        $headers = $event->getResponse()
+            ->headers;
         if ($headers->has('X-Pwa-Dev')) {
             $event->stopPropagation();
         }
diff --git a/src/Twig/PwaRuntime.php b/src/Twig/PwaRuntime.php
index a97e387..484a0aa 100644
--- a/src/Twig/PwaRuntime.php
+++ b/src/Twig/PwaRuntime.php
@@ -14,6 +14,7 @@
 use Symfony\Component\AssetMapper\MappedAsset;
 use Symfony\Component\DependencyInjection\Attribute\Autowire;
 use Symfony\Component\Mime\MimeTypes;
+use function array_key_exists;
 use function sprintf;
 use const ENT_COMPAT;
 use const ENT_SUBSTITUTE;