diff --git a/Admin/Install/Media.php b/Admin/Install/Media.php
index bb09d89..6bb5522 100755
--- a/Admin/Install/Media.php
+++ b/Admin/Install/Media.php
@@ -16,7 +16,7 @@ namespace Modules\Billing\Admin\Install;
 
 use Model\Setting;
 use Model\SettingMapper;
-use phpOMS\DataStorage\Database\DatabasePool;
+use phpOMS\Application\ApplicationAbstract;
 
 /**
  * Media class.
@@ -32,15 +32,15 @@ class Media
      * Install media providing
      *
      * @param string       $path   Module path
-     * @param DatabasePool $dbPool Database pool for database interaction
+     * @param ApplicationAbstract $app Application
      *
      * @return void
      *
      * @since 1.0.0
      */
-    public static function install(string $path, DatabasePool $dbPool) : void
+    public static function install(string $path, ApplicationAbstract $app) : void
     {
-        $media = \Modules\Media\Admin\Installer::installExternal($dbPool, ['path' => __DIR__ . '/Media.install.json']);
+        $media = \Modules\Media\Admin\Installer::installExternal($app, ['path' => __DIR__ . '/Media.install.json']);
 
         $defaultTemplate = \reset($media['upload'][0]);
 
diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index 3d10b3f..a5f1e34 100755
--- a/Admin/Install/Navigation.php
+++ b/Admin/Install/Navigation.php
@@ -14,7 +14,7 @@ declare(strict_types=1);
 
 namespace Modules\Billing\Admin\Install;
 
-use phpOMS\DataStorage\Database\DatabasePool;
+use phpOMS\Application\ApplicationAbstract;
 
 /**
  * Navigation class.
@@ -30,14 +30,14 @@ class Navigation
      * Install navigation providing
      *
      * @param string       $path   Module path
-     * @param DatabasePool $dbPool Database pool for database interaction
+     * @param ApplicationAbstract $app Application
      *
      * @return void
      *
      * @since 1.0.0
      */
-    public static function install(string $path, DatabasePool $dbPool) : void
+    public static function install(string $path, ApplicationAbstract $app) : void
     {
-        \Modules\Navigation\Admin\Installer::installExternal($dbPool, ['path' => __DIR__ . '/Navigation.install.json']);
+        \Modules\Navigation\Admin\Installer::installExternal($app, ['path' => __DIR__ . '/Navigation.install.json']);
     }
 }
diff --git a/Admin/Install/WarehouseManagement.php b/Admin/Install/WarehouseManagement.php
index 65b0248..0aa8a2d 100755
--- a/Admin/Install/WarehouseManagement.php
+++ b/Admin/Install/WarehouseManagement.php
@@ -15,8 +15,8 @@ declare(strict_types=1);
 namespace Modules\Billing\Admin\Install;
 
 use phpOMS\Autoloader;
-use phpOMS\DataStorage\Database\DatabasePool;
 use phpOMS\DataStorage\Database\Schema\Builder;
+use phpOMS\Application\ApplicationAbstract;
 
 /**
  * WarehouseManagement class.
@@ -32,20 +32,20 @@ class WarehouseManagement
      * Install comment relation
      *
      * @param string       $path   Module path
-     * @param DatabasePool $dbPool Database pool for database interaction
+     * @param ApplicationAbstract $app Application
      *
      * @return void
      *
      * @since 1.0.0
      */
-    public static function install(string $path, DatabasePool $dbPool) : void
+    public static function install(string $path, ApplicationAbstract $app) : void
     {
-        $builder = new Builder($dbPool->get('schema'));
+        $builder = new Builder($app->dbPool->get('schema'));
         $builder->alterTable('billing_bill')
             ->addConstraint('billing_bill_stock_from', 'warehousemgmt_stocklocation', 'warehousemgmt_stocklocation_id')
             ->execute();
 
-        $builder = new Builder($dbPool->get('schema'));
+        $builder = new Builder($app->dbPool->get('schema'));
         $builder->alterTable('billing_bill')
             ->addConstraint('billing_bill_stock_to', 'warehousemgmt_stocklocation', 'warehousemgmt_stocklocation_id')
             ->execute();