diff --git a/.github/workflows/ci-4.x.yml b/.github/workflows/ci-4.x.yml
index f78d921b..52c9800d 100644
--- a/.github/workflows/ci-4.x.yml
+++ b/.github/workflows/ci-4.x.yml
@@ -29,9 +29,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
-        with:
-          ref: 4.x
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
diff --git a/.github/workflows/ci-5.x.yml b/.github/workflows/ci-5.x.yml
index 5b8093db..c925acfa 100644
--- a/.github/workflows/ci-5.x.yml
+++ b/.github/workflows/ci-5.x.yml
@@ -18,9 +18,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
-        with:
-          ref: 5.x
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -57,9 +55,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
-        with:
-          ref: 5.x
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -130,9 +126,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
-        with:
-          ref: 5.x
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
diff --git a/src/Controller/ViewerController.php b/src/Controller/ViewerController.php
index 0ad0755d..85d7a3f1 100644
--- a/src/Controller/ViewerController.php
+++ b/src/Controller/ViewerController.php
@@ -10,19 +10,21 @@
 use DH\Auditor\Provider\Doctrine\Persistence\Schema\SchemaManager;
 use DH\Auditor\Provider\Doctrine\Service\AuditingService;
 use DH\AuditorBundle\Helper\UrlHelper;
-use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\Routing\Annotation\Route;
+use Symfony\Component\Security\Core\Exception\AccessDeniedException as SymfonyAccessDeniedException;
+use Twig\Environment;
 
 /**
  * @see \DH\AuditorBundle\Tests\Controller\ViewerControllerTest
  */
-class ViewerController extends AbstractController
+class ViewerController
 {
     private $environment;
 
-    public function __construct(\Twig\Environment $environment)
+    public function __construct(Environment $environment)
     {
         $this->environment = $environment;
     }
@@ -53,7 +55,7 @@ static function ($entity) use ($reader, $scope) {
             );
         }
 
-        return $this->render('@DHAuditor/Audit/audits.html.twig', [
+        return $this->renderView('@DHAuditor/Audit/audits.html.twig', [
             'audited' => $audited,
             'reader' => $reader,
         ]);
@@ -66,7 +68,7 @@ public function showTransactionAction(Reader $reader, string $hash): Response
     {
         $audits = $reader->getAuditsByTransactionHash($hash);
 
-        return $this->render('@DHAuditor/Audit/transaction.html.twig', [
+        return $this->renderView('@DHAuditor/Audit/transaction.html.twig', [
             'hash' => $hash,
             'audits' => $audits,
         ]);
@@ -85,7 +87,7 @@ public function showEntityHistoryAction(Request $request, Reader $reader, string
         $entity = UrlHelper::paramToNamespace($entity);
 
         if (!$reader->getProvider()->isAuditable($entity)) {
-            throw $this->createNotFoundException();
+            throw new NotFoundHttpException('Not Found');
         }
 
         try {
@@ -95,18 +97,18 @@ public function showEntityHistoryAction(Request $request, Reader $reader, string
                 'page_size' => Reader::PAGE_SIZE,
             ]), $page, Reader::PAGE_SIZE);
         } catch (AccessDeniedException $e) {
-            throw $this->createAccessDeniedException();
+            throw new SymfonyAccessDeniedException('Access Denied.');
         }
 
-        return $this->render('@DHAuditor/Audit/entity_history.html.twig', [
+        return $this->renderView('@DHAuditor/Audit/entity_history.html.twig', [
             'id' => $id,
             'entity' => $entity,
             'paginator' => $pager,
         ]);
     }
 
-    protected function renderView(string $view, array $parameters = []): string
+    protected function renderView(string $view, array $parameters = []): Response
     {
-        return $this->environment->render($view, $parameters);
+        return new Response($this->environment->render($view, $parameters));
     }
 }
diff --git a/src/Resources/config/services.yaml b/src/Resources/config/services.yaml
index 3198d075..73bedbf3 100644
--- a/src/Resources/config/services.yaml
+++ b/src/Resources/config/services.yaml
@@ -67,8 +67,6 @@ services:
   # Bundle related services
   DH\AuditorBundle\Controller\ViewerController:
     arguments: ['@twig']
-    calls:
-      - { method: setContainer, arguments: ['@service_container'] }
     tags: ['controller.service_arguments']
 
   DH\AuditorBundle\User\UserProvider: