diff --git a/src/Symfony/Component/Security/Http/Attribute/IsGranted.php b/src/Symfony/Component/Security/Http/Attribute/IsGranted.php
index 928babe261f24..2b4c2b532bc8d 100644
--- a/src/Symfony/Component/Security/Http/Attribute/IsGranted.php
+++ b/src/Symfony/Component/Security/Http/Attribute/IsGranted.php
@@ -15,7 +15,7 @@
  * @author Ryan Weaver <ryan@knpuniversity.com>
  */
 #[\Attribute(\Attribute::IS_REPEATABLE | \Attribute::TARGET_CLASS | \Attribute::TARGET_METHOD | \Attribute::TARGET_FUNCTION)]
-class IsGranted
+final class IsGranted
 {
     public function __construct(
         /**
diff --git a/src/Symfony/Component/Security/Http/EventListener/IsGrantedAttributeListener.php b/src/Symfony/Component/Security/Http/EventListener/IsGrantedAttributeListener.php
index 8fcc4b8313485..b15875fddad1c 100644
--- a/src/Symfony/Component/Security/Http/EventListener/IsGrantedAttributeListener.php
+++ b/src/Symfony/Component/Security/Http/EventListener/IsGrantedAttributeListener.php
@@ -17,6 +17,7 @@
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
 use Symfony\Component\Security\Core\Exception\AccessDeniedException;
+use Symfony\Component\Security\Core\Exception\RuntimeException;
 use Symfony\Component\Security\Http\Attribute\IsGranted;
 
 /**
@@ -48,12 +49,12 @@ public function onKernelControllerArguments(ControllerArgumentsEvent $event)
                 if (\is_array($subjectRef)) {
                     foreach ($subjectRef as $ref) {
                         if (!\array_key_exists($ref, $arguments)) {
-                            throw new \RuntimeException(sprintf('Could not find the subject "%s" for the #[IsGranted] attribute. Try adding a "$%s" argument to your controller method.', $ref, $ref));
+                            throw new RuntimeException(sprintf('Could not find the subject "%s" for the #[IsGranted] attribute. Try adding a "$%s" argument to your controller method.', $ref, $ref));
                         }
                         $subject[$ref] = $arguments[$ref];
                     }
                 } elseif (!\array_key_exists($subjectRef, $arguments)) {
-                    throw new \RuntimeException(sprintf('Could not find the subject "%s" for the #[IsGranted] attribute. Try adding a "$%s" argument to your controller method.', $subjectRef, $subjectRef));
+                    throw new RuntimeException(sprintf('Could not find the subject "%s" for the #[IsGranted] attribute. Try adding a "$%s" argument to your controller method.', $subjectRef, $subjectRef));
                 } else {
                     $subject = $arguments[$subjectRef];
                 }