diff --git a/Models/NullCollection.php b/Models/NullCollection.php
index bd97d2e..1d22b9c 100644
--- a/Models/NullCollection.php
+++ b/Models/NullCollection.php
@@ -22,6 +22,6 @@ namespace Modules\Media\Models;
  * @link    https://orange-management.org
  * @since   1.0.0
  */
-class NullCollection extends Collection
+final class NullCollection extends Collection
 {
 }
diff --git a/Models/NullMedia.php b/Models/NullMedia.php
index 16eea22..80c6101 100644
--- a/Models/NullMedia.php
+++ b/Models/NullMedia.php
@@ -22,6 +22,6 @@ namespace Modules\Media\Models;
  * @link    https://orange-management.org
  * @since   1.0.0
  */
-class NullMedia extends Media
+final class NullMedia extends Media
 {
 }