diff --git a/src/Controller/Api/TestController.php b/src/Controller/Api/TestController.php
index 5da60aa..d5abb8b 100644
--- a/src/Controller/Api/TestController.php
+++ b/src/Controller/Api/TestController.php
@@ -18,7 +18,7 @@
 use Shopware\Core\PlatformRequest;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\Routing\Annotation\Route;
+use Symfony\Component\Routing\Attribute\Route;
 
 #[Route(defaults: ['_routeScope' => ['api']])]
 class TestController
diff --git a/src/Core/Media/ExtendedUrlParams.php b/src/Core/Media/ExtendedUrlParams.php
index 8ccfb11..f713d69 100644
--- a/src/Core/Media/ExtendedUrlParams.php
+++ b/src/Core/Media/ExtendedUrlParams.php
@@ -45,7 +45,7 @@ public static function fromThumbnail(Entity $entity): self
         $mediaUrlParam = $entity->getTranslation('mediaUrlParam');
         if (!($mediaUrlParam instanceof ExtendedUrlParam)) {
             throw new \InvalidArgumentException(
-                \sprintf('"mediaUrlParam" within translations must be type of "%s"', __CLASS__)
+                \sprintf('"mediaUrlParam" within translations must be type of "%s"', self::class)
             );
         }
 
diff --git a/src/DependencyInjection/GeneratorCompilerPass.php b/src/DependencyInjection/GeneratorCompilerPass.php
index 041d2c0..3069580 100644
--- a/src/DependencyInjection/GeneratorCompilerPass.php
+++ b/src/DependencyInjection/GeneratorCompilerPass.php
@@ -2,6 +2,8 @@
 
 namespace Frosh\ThumbnailProcessor\DependencyInjection;
 
+use PhpParser\Node\Stmt\UseUse;
+use PhpParser\Node\Stmt\Use_;
 use PhpParser\Comment\Doc;
 use PhpParser\Node\Expr\Assign;
 use PhpParser\Node\Expr\ConstFetch;
@@ -175,14 +177,14 @@ private function addUsesOfNamespace(?array &$stmts, string $namespace): void
                 continue;
             }
 
-            $uses[] = new Stmt\UseUse(new Name($class));
+            $uses[] = new UseUse(new Name($class));
         }
 
         if (empty($uses)) {
             return;
         }
 
-        array_unshift($stmts, new Stmt\Use_($uses));
+        array_unshift($stmts, new Use_($uses));
     }
 
     private function getFileContent(): ?string
diff --git a/src/Service/ConfigReader.php b/src/Service/ConfigReader.php
index 9d77919..fd058f1 100644
--- a/src/Service/ConfigReader.php
+++ b/src/Service/ConfigReader.php
@@ -9,7 +9,7 @@
 
 class ConfigReader
 {
-    private ?string $salesChannelId;
+    private ?string $salesChannelId = null;
 
     private bool $salesChannelIdDetected = false;