diff --git a/src/Bundle/ChillTaskBundle/Event/AssignTaskEvent.php b/src/Bundle/ChillTaskBundle/Event/AssignTaskEvent.php
index a7eca02f4..bf74c446e 100644
--- a/src/Bundle/ChillTaskBundle/Event/AssignTaskEvent.php
+++ b/src/Bundle/ChillTaskBundle/Event/AssignTaskEvent.php
@@ -18,6 +18,7 @@ use Symfony\Contracts\EventDispatcher\Event;
 class AssignTaskEvent extends Event
 {
     final public const PERSIST = 'chill_task.assign_task';
+
     public function __construct(
         private readonly SingleTask $task,
         private readonly ?User $initialAssignee,
diff --git a/src/Bundle/ChillTaskBundle/Notification/AssignTaskNotificationFlagProvider.php b/src/Bundle/ChillTaskBundle/Notification/AssignTaskNotificationFlagProvider.php
index 2be454840..63978913c 100644
--- a/src/Bundle/ChillTaskBundle/Notification/AssignTaskNotificationFlagProvider.php
+++ b/src/Bundle/ChillTaskBundle/Notification/AssignTaskNotificationFlagProvider.php
@@ -1,5 +1,14 @@
 <?php
 
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
 namespace Chill\TaskBundle\Notification;
 
 use Chill\MainBundle\Notification\FlagProviders\NotificationFlagProviderInterface;
@@ -9,6 +18,7 @@ use Symfony\Contracts\Translation\TranslatableInterface;
 class AssignTaskNotificationFlagProvider implements NotificationFlagProviderInterface
 {
     public const FLAG = 'task-assign-notif';
+
     public function getFlag(): string
     {
         return self::FLAG;
diff --git a/src/Bundle/ChillTaskBundle/Notification/TaskNotificationHandler.php b/src/Bundle/ChillTaskBundle/Notification/TaskNotificationHandler.php
index 6dd6570b6..8085a03f8 100644
--- a/src/Bundle/ChillTaskBundle/Notification/TaskNotificationHandler.php
+++ b/src/Bundle/ChillTaskBundle/Notification/TaskNotificationHandler.php
@@ -62,7 +62,7 @@ final readonly class TaskNotificationHandler implements NotificationHandlerInter
         return [$task->getPerson()];
     }
 
-    public function getRelatedEntity(Notification $notification): object
+    public function getRelatedEntity(Notification $notification): ?object
     {
         return $this->taskRepository->find($notification->getRelatedEntityId());
     }
diff --git a/src/Bundle/ChillTaskBundle/Tests/EventSubscriber/TaskAssignEventSubscriberTest.php b/src/Bundle/ChillTaskBundle/Tests/EventSubscriber/TaskAssignEventSubscriberTest.php
index 3cd3ff20f..2a820478c 100644
--- a/src/Bundle/ChillTaskBundle/Tests/EventSubscriber/TaskAssignEventSubscriberTest.php
+++ b/src/Bundle/ChillTaskBundle/Tests/EventSubscriber/TaskAssignEventSubscriberTest.php
@@ -2,6 +2,13 @@
 
 declare(strict_types=1);
 
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
 namespace Chill\TaskBundle\Tests\EventSubscriber;
 
 use Chill\MainBundle\Entity\Notification;
@@ -14,6 +21,11 @@ use Doctrine\ORM\EntityManagerInterface;
 use PHPUnit\Framework\TestCase;
 use Twig\Environment;
 
+/**
+ * @internal
+ *
+ * @coversNothing
+ */
 class TaskAssignEventSubscriberTest extends TestCase
 {
     private EntityManagerInterface $entityManager;