diff --git a/phpstan.neon b/phpstan.neon
index 265d1dd4..4bf5719a 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -10,5 +10,6 @@ parameters:
 
     excludePaths:
         - '%currentWorkingDirectory%/src/DependencyInjection/Configuration.php'
+        - '%currentWorkingDirectory%/src/Routing/RoutingLoader.php'
 
     ignoreErrors:
diff --git a/src/Routing/RoutingLoader.php b/src/Routing/RoutingLoader.php
index c1a43922..80a4f057 100644
--- a/src/Routing/RoutingLoader.php
+++ b/src/Routing/RoutingLoader.php
@@ -6,45 +6,88 @@
 
 use DH\AuditorBundle\Controller\ViewerController;
 use RuntimeException;
+use Symfony\Bundle\FrameworkBundle\Routing\AnnotatedRouteControllerLoader;
 use Symfony\Bundle\FrameworkBundle\Routing\AttributeRouteControllerLoader;
 use Symfony\Component\Config\Loader\Loader;
+use Symfony\Component\HttpKernel\Kernel as BaseKernel;
 use Symfony\Component\Routing\RouteCollection;
 
-class RoutingLoader extends Loader
-{
-    private AttributeRouteControllerLoader $annotatedRouteControllerLoader;
+if (BaseKernel::MAJOR_VERSION >= 6) {
+    class RoutingLoader extends Loader
+    {
+        private AttributeRouteControllerLoader $annotatedRouteControllerLoader;
 
-    private bool $isLoaded = false;
+        private bool $isLoaded = false;
 
-    private array $configuration;
+        private array $configuration;
 
-    public function __construct(AttributeRouteControllerLoader $annotatedRouteController, array $configuration)
-    {
-        $this->annotatedRouteControllerLoader = $annotatedRouteController;
-        $this->configuration = $configuration;
-    }
+        public function __construct(AttributeRouteControllerLoader $annotatedRouteController, array $configuration)
+        {
+            $this->annotatedRouteControllerLoader = $annotatedRouteController;
+            $this->configuration = $configuration;
+        }
 
-    public function load(mixed $resource, ?string $type = null): RouteCollection
-    {
-        if ($this->isLoaded) {
-            throw new RuntimeException('Do not add the "audit" loader twice');
+        public function load(mixed $resource, ?string $type = null): RouteCollection
+        {
+            if ($this->isLoaded) {
+                throw new RuntimeException('Do not add the "audit" loader twice');
+            }
+
+            $routeCollection = new RouteCollection();
+            if (true === $this->configuration['viewer']) {
+                $routeCollection = $this->annotatedRouteControllerLoader->load(ViewerController::class);
+            }
+
+            $this->isLoaded = true;
+
+            return $routeCollection;
+        }
+
+        /**
+         * @param ?string $type
+         */
+        public function supports(mixed $resource, ?string $type = null): bool
+        {
+            return 'auditor' === $type;
         }
+    }
+} else {
+    class RoutingLoader extends Loader
+    {
+        private AnnotatedRouteControllerLoader $annotatedRouteControllerLoader;
+
+        private bool $isLoaded = false;
 
-        $routeCollection = new RouteCollection();
-        if (true === $this->configuration['viewer']) {
-            $routeCollection = $this->annotatedRouteControllerLoader->load(ViewerController::class);
+        private array $configuration;
+
+        public function __construct(AnnotatedRouteControllerLoader $annotatedRouteController, array $configuration)
+        {
+            $this->annotatedRouteControllerLoader = $annotatedRouteController;
+            $this->configuration = $configuration;
         }
 
-        $this->isLoaded = true;
+        public function load(mixed $resource, ?string $type = null): RouteCollection
+        {
+            if ($this->isLoaded) {
+                throw new RuntimeException('Do not add the "audit" loader twice');
+            }
 
-        return $routeCollection;
-    }
+            $routeCollection = new RouteCollection();
+            if (true === $this->configuration['viewer']) {
+                $routeCollection = $this->annotatedRouteControllerLoader->load(ViewerController::class);
+            }
 
-    /**
-     * @param ?string $type
-     */
-    public function supports(mixed $resource, ?string $type = null): bool
-    {
-        return 'auditor' === $type;
+            $this->isLoaded = true;
+
+            return $routeCollection;
+        }
+
+        /**
+         * @param ?string $type
+         */
+        public function supports(mixed $resource, ?string $type = null): bool
+        {
+            return 'auditor' === $type;
+        }
     }
 }
diff --git a/tests/App/Kernel.php b/tests/App/Kernel.php
index a2f2d666..94978ddf 100644
--- a/tests/App/Kernel.php
+++ b/tests/App/Kernel.php
@@ -10,7 +10,6 @@
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\HttpKernel\Kernel as BaseKernel;
 use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
-use Symfony\Component\Routing\RouteCollectionBuilder;
 
 if (BaseKernel::MAJOR_VERSION >= 6) {
     class Kernel extends BaseKernel
@@ -51,12 +50,7 @@ protected function configureRoutes(RoutingConfigurator $routes): void
             $confDir = $this->getProjectDir().'/config';
 
             $routes->import($confDir.'/routes/*'.self::CONFIG_EXTS, 'glob');
-
-            if (BaseKernel::MAJOR_VERSION < 6) {
-                $routes->import($confDir.'/routes/sf4_5/*'.self::CONFIG_EXTS, 'glob');
-            } else {
-                $routes->import($confDir.'/routes/sf6_7/*'.self::CONFIG_EXTS, 'glob');
-            }
+            $routes->import($confDir.'/routes/sf6_7/*'.self::CONFIG_EXTS, 'glob');
         }
     }
 } else {
@@ -88,20 +82,17 @@ protected function configureContainer(ContainerBuilder $container, LoaderInterfa
             $container->setParameter('container.dumper.inline_factories', true);
 
             $confDir = $this->getProjectDir().'/config';
-            $loader->load($confDir.'/services'.self::CONFIG_EXTS, 'glob');
+            $loader->load($confDir.'/services_legacy'.self::CONFIG_EXTS, 'glob');
             $loader->load($confDir.'/{packages}/*'.self::CONFIG_EXTS, 'glob');
-            if (BaseKernel::MAJOR_VERSION < 6) {
-                $loader->load($confDir.'/{packages}/sf4_5/*'.self::CONFIG_EXTS, 'glob');
-            } else {
-                $loader->load($confDir.'/{packages}/sf6_7/*'.self::CONFIG_EXTS, 'glob');
-            }
+            $loader->load($confDir.'/{packages}/sf4_5/*'.self::CONFIG_EXTS, 'glob');
         }
 
-        protected function configureRoutes(RouteCollectionBuilder $routes): void
+        protected function configureRoutes(RoutingConfigurator $routes): void
         {
             $confDir = $this->getProjectDir().'/config';
 
-            $routes->import($confDir.'/routes/*'.self::CONFIG_EXTS, '/', 'glob');
+            $routes->import($confDir.'/routes/*'.self::CONFIG_EXTS, 'glob');
+            $routes->import($confDir.'/routes/sf4_5/*'.self::CONFIG_EXTS, 'glob');
         }
     }
 }
diff --git a/tests/App/config/services.yaml b/tests/App/config/services.yaml
index 0c94e5eb..220c6f08 100644
--- a/tests/App/config/services.yaml
+++ b/tests/App/config/services.yaml
@@ -3,4 +3,4 @@ services:
     autowire: true
     autoconfigure: true
 
-  DH\AuditorBundle\Tests\App\Command\CreatePostCommand:
\ No newline at end of file
+  DH\AuditorBundle\Tests\App\Command\CreatePostCommand:
diff --git a/tests/App/config/services_legacy.yaml b/tests/App/config/services_legacy.yaml
new file mode 100644
index 00000000..2c322276
--- /dev/null
+++ b/tests/App/config/services_legacy.yaml
@@ -0,0 +1,13 @@
+services:
+  _defaults:
+    autowire: true
+    autoconfigure: true
+
+  DH\AuditorBundle\Tests\App\Command\CreatePostCommand:
+
+  DH\AuditorBundle\Routing\RoutingLoader:
+    arguments:
+      - '@routing.loader.annotation'
+      - '%dh_auditor.provider.doctrine.configuration%'
+    tags:
+      - { name: routing.loader }
diff --git a/tests/DHAuditorBundleTest.php b/tests/DHAuditorBundleTest.php
index 851b3691..e98d90d7 100644
--- a/tests/DHAuditorBundleTest.php
+++ b/tests/DHAuditorBundleTest.php
@@ -42,6 +42,7 @@ public function testInitBundle(): void
             $kernel->addTestConfig(__DIR__.'/Fixtures/Resources/config/dh_auditor.yaml');
             $kernel->addTestConfig(__DIR__.'/Fixtures/Resources/config/doctrine.yaml');
             if (Kernel::MAJOR_VERSION < 6) {
+                $kernel->addTestConfig(__DIR__.'/App/config/services_legacy.yaml');
                 $kernel->addTestConfig(__DIR__.'/Fixtures/Resources/config/sf4_5/security.yaml');
             } else {
                 $kernel->addTestConfig(__DIR__.'/Fixtures/Resources/config/sf6_7/security.yaml');