diff --git a/Admin/Activate.php b/Admin/Activate.php
index 35d20f3..16cdf61 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\Admin\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 7de3621..c50023f 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\Admin\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 2805621..2130dd6 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\Admin\Admin\Install;
 use phpOMS\DataStorage\Database\DatabasePool;
 
diff --git a/Admin/Installer.php b/Admin/Installer.php
index c1383d8..a361555 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\Admin\Admin;
 
 use phpOMS\DataStorage\Database\DatabaseType;
diff --git a/Admin/Uninstall.php b/Admin/Uninstall.php
index c968eb6..c6a7be1 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\Admin\Admin;
 
-
 use phpOMS\DataStorage\Database\DatabasePool;
 use phpOMS\Module\UninstallAbstract;
 
diff --git a/Admin/Update.php b/Admin/Update.php
index 4cfdf2a..66b7c56 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\Admin\Admin;
 
-
 use phpOMS\DataStorage\Database\DatabasePool;
 use phpOMS\Module\UpdateAbstract;
 use phpOMS\System\File\Directory;
diff --git a/Controller.php b/Controller.php
index 28b963c..d441cac 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\Admin;
 
 use Model\Message\FormValidation;
diff --git a/Models/Account.php b/Models/Account.php
index f627b25..bdc3c5e 100644
--- a/Models/Account.php
+++ b/Models/Account.php
@@ -13,6 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\Admin\Models;
 
 /**
diff --git a/Models/AccountMapper.php b/Models/AccountMapper.php
index c1fc563..7166a91 100644
--- a/Models/AccountMapper.php
+++ b/Models/AccountMapper.php
@@ -13,6 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\Admin\Models;
 
 use Modules\Media\Models\MediaMapper;
diff --git a/Models/Group.php b/Models/Group.php
index 1f81cc6..87fb5fc 100644
--- a/Models/Group.php
+++ b/Models/Group.php
@@ -13,6 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\Admin\Models;
 
 /**
diff --git a/Models/GroupMapper.php b/Models/GroupMapper.php
index 244cd29..61e73b7 100644
--- a/Models/GroupMapper.php
+++ b/Models/GroupMapper.php
@@ -13,6 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\Admin\Models;
 
 use phpOMS\DataStorage\Database\DataMapperAbstract;
diff --git a/Models/NullAccount.php b/Models/NullAccount.php
index ba68cca..54f5fdf 100644
--- a/Models/NullAccount.php
+++ b/Models/NullAccount.php
@@ -13,6 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\Admin\Models;
 
 class NullAccount extends Account
diff --git a/Models/NullGroup.php b/Models/NullGroup.php
index 22aa441..410e979 100644
--- a/Models/NullGroup.php
+++ b/Models/NullGroup.php
@@ -13,6 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
+declare(strict_types=1);
 namespace Modules\Admin\Models;
 
 class NullGroup extends Group