diff --git a/Admin/Installer.php b/Admin/Installer.php
index 1204138..5f33727 100644
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -82,7 +82,7 @@ class Installer extends InstallerAbstract
                             `group_permission_id` int(11) NOT NULL AUTO_INCREMENT,
                             `group_permission_group` int(11) NOT NULL,
                             `group_permission_unit` int(11) DEFAULT NULL,
-                            `group_permission_app` int(11) DEFAULT NULL,
+                            `group_permission_app` varchar(255) DEFAULT NULL,
                             `group_permission_module` int(11) DEFAULT NULL,
                             `group_permission_from` int(11) DEFAULT NULL,
                             `group_permission_type` int(11) DEFAULT NULL,
diff --git a/Models/PermissionType.php b/Models/PermissionType.php
index 9376342..586faef 100644
--- a/Models/PermissionType.php
+++ b/Models/PermissionType.php
@@ -17,7 +17,7 @@ declare(strict_types=1);
 
 namespace Modules\Admin\Models;
 
-use phpOMS\Datatypes\Enum;
+use phpOMS\Stdlib\Base\Enum;
 
 /**
  * Permission type enum.