diff --git a/Admin/Activate.php b/Admin/Activate.php
index cc2ed70..76e0a94 100644
--- a/Admin/Activate.php
+++ b/Admin/Activate.php
@@ -13,9 +13,9 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\SupplierManagement\Admin;
 
-
 use phpOMS\DataStorage\Database\DatabasePool;
 use phpOMS\Module\ActivateAbstract;
 use phpOMS\Module\InfoManager;
diff --git a/Admin/Deactivate.php b/Admin/Deactivate.php
index 3d05804..bf05298 100644
--- a/Admin/Deactivate.php
+++ b/Admin/Deactivate.php
@@ -13,9 +13,9 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\SupplierManagement\Admin;
 
-
 use phpOMS\DataStorage\Database\DatabasePool;
 use phpOMS\Module\DeactivateAbstract;
 use phpOMS\Module\InfoManager;
diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index 7379768..4ba7a36 100644
--- a/Admin/Install/Navigation.php
+++ b/Admin/Install/Navigation.php
@@ -13,6 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\SupplierManagement\Admin\Install;
 use phpOMS\DataStorage\Database\DatabasePool;
 
diff --git a/Admin/Installer.php b/Admin/Installer.php
index 03e169a..8ba9391 100644
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -13,6 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\SupplierManagement\Admin;
 
 use phpOMS\DataStorage\Database\DatabaseType;
diff --git a/Admin/Uninstall.php b/Admin/Uninstall.php
index 7f48811..d18f301 100644
--- a/Admin/Uninstall.php
+++ b/Admin/Uninstall.php
@@ -13,9 +13,9 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\SupplierManagement\Admin;
 
-
 use phpOMS\DataStorage\Database\DatabasePool;
 use phpOMS\Module\UninstallAbstract;
 
diff --git a/Admin/Update.php b/Admin/Update.php
index a1aeba7..fa75aee 100644
--- a/Admin/Update.php
+++ b/Admin/Update.php
@@ -13,9 +13,9 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\SupplierManagement\Admin;
 
-
 use phpOMS\DataStorage\Database\DatabasePool;
 use phpOMS\Module\UpdateAbstract;
 use phpOMS\System\File\Directory;
diff --git a/Controller.php b/Controller.php
index 866ebb7..60fc80b 100644
--- a/Controller.php
+++ b/Controller.php
@@ -13,6 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\SupplierManagement;
 
 use Modules\Navigation\Models\Navigation;