diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 06b838e..9187ab9 100644
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -31,7 +31,7 @@ use phpOMS\Views\View;
  * @link       http://website.orange-management.de
  * @since      1.0.0
  */
-class BackendController extends Controller
+final class BackendController extends Controller
 {
 
     /**
diff --git a/Models/Log.php b/Models/Log.php
index f6a39dc..bec64eb 100644
--- a/Models/Log.php
+++ b/Models/Log.php
@@ -1,6 +1,6 @@
 <?php
 
-class Log implements \JsonSerializable
+final class Log implements \JsonSerializable
 {
     private $id = 0;