diff --git a/Models/NullNewsArticle.php b/Models/NullNewsArticle.php
index 98ba639..2200261 100644
--- a/Models/NullNewsArticle.php
+++ b/Models/NullNewsArticle.php
@@ -22,6 +22,6 @@ namespace Modules\News\Models;
  * @link    https://orange-management.org
  * @since   1.0.0
  */
-class NullNewsArticle extends NewsArticle
+final class NullNewsArticle extends NewsArticle
 {
 }