diff --git a/Admin/Status.php b/Admin/Status.php
index dfe87ce..c43f360 100644
--- a/Admin/Status.php
+++ b/Admin/Status.php
@@ -17,13 +17,13 @@ namespace Modules\ResearchDevelopment\Admin;
 use phpOMS\Module\StatusAbstract;
 
 /**
- * Navigation class.
+ * Status class.
  *
  * @package Modules\ResearchDevelopment\Admin
  * @license OMS License 1.0
  * @link    https://orange-management.org
  * @since   1.0.0
  */
-class Status extends StatusAbstract
+final class Status extends StatusAbstract
 {
 }
diff --git a/Admin/Uninstaller.php b/Admin/Uninstaller.php
index 6261397..0d8da13 100644
--- a/Admin/Uninstaller.php
+++ b/Admin/Uninstaller.php
@@ -24,6 +24,6 @@ use phpOMS\Module\UninstallerAbstract;
  * @link    https://orange-management.org
  * @since   1.0.0
  */
-class Uninstaller extends UninstallerAbstract
+final class Uninstaller extends UninstallerAbstract
 {
 }
diff --git a/Admin/Updater.php b/Admin/Updater.php
index cea342c..8d49d65 100644
--- a/Admin/Updater.php
+++ b/Admin/Updater.php
@@ -24,6 +24,6 @@ use phpOMS\Module\UpdaterAbstract;
  * @link    https://orange-management.org
  * @since   1.0.0
  */
-class Updater extends UpdaterAbstract
+final class Updater extends UpdaterAbstract
 {
 }