diff --git a/config/module.config.php b/config/module.config.php
index 44038a4..14386d2 100644
--- a/config/module.config.php
+++ b/config/module.config.php
@@ -5,11 +5,11 @@
 use Laminas\Mvc\Middleware\PipeSpec;
 use Laminas\Router\Http\Literal;
 use Logger\Middleware\LoggerRequestResponseMiddleware;
+use Pi\Core\Middleware\InstallerMiddleware;
+use Pi\Core\Middleware\RequestPreparationMiddleware;
 use Pi\Core\Middleware\SecurityMiddleware;
 use User\Middleware\AuthenticationMiddleware;
 use User\Middleware\AuthorizationMiddleware;
-use User\Middleware\InstallerMiddleware;
-use User\Middleware\RequestPreparationMiddleware;
 
 return [
     'service_manager' => [
diff --git a/src/Factory/Handler/InstallerHandlerFactory.php b/src/Factory/Handler/InstallerHandlerFactory.php
index b25d511..9abd683 100644
--- a/src/Factory/Handler/InstallerHandlerFactory.php
+++ b/src/Factory/Handler/InstallerHandlerFactory.php
@@ -2,14 +2,14 @@
 
 namespace Notification\Factory\Handler;
 
-use Psr\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
 use Notification\Handler\InstallerHandler;
+use Pi\Core\Service\InstallerService;
 use Psr\Container\ContainerExceptionInterface;
+use Psr\Container\ContainerInterface;
 use Psr\Container\NotFoundExceptionInterface;
 use Psr\Http\Message\ResponseFactoryInterface;
 use Psr\Http\Message\StreamFactoryInterface;
-use User\Service\InstallerService;
 
 class InstallerHandlerFactory implements FactoryInterface
 {
diff --git a/src/Factory/Service/NotificationServiceFactory.php b/src/Factory/Service/NotificationServiceFactory.php
index a3ba189..0b4a479 100644
--- a/src/Factory/Service/NotificationServiceFactory.php
+++ b/src/Factory/Service/NotificationServiceFactory.php
@@ -2,7 +2,6 @@
 
 namespace Notification\Factory\Service;
 
-use Psr\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
 use Notification\Repository\NotificationRepositoryInterface;
 use Notification\Sender\Mail\LaminasMail;
@@ -14,9 +13,10 @@
 use Notification\Sender\SMS\PayamakYab;
 use Notification\Sender\SMS\Twilio;
 use Notification\Service\NotificationService;
+use Pi\Core\Service\UtilityService;
 use Psr\Container\ContainerExceptionInterface;
+use Psr\Container\ContainerInterface;
 use Psr\Container\NotFoundExceptionInterface;
-use User\Service\UtilityService;
 
 class NotificationServiceFactory implements FactoryInterface
 {
diff --git a/src/Handler/InstallerHandler.php b/src/Handler/InstallerHandler.php
index eed48d8..a3475b8 100644
--- a/src/Handler/InstallerHandler.php
+++ b/src/Handler/InstallerHandler.php
@@ -3,13 +3,13 @@
 namespace Notification\Handler;
 
 use Laminas\Diactoros\Response\JsonResponse;
+use Pi\Core\Service\InstallerService;
 use Psr\Http\Message\ResponseFactoryInterface;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Message\StreamFactoryInterface;
 use Psr\Http\Server\RequestHandlerInterface;
 use stdClass;
-use User\Service\InstallerService;
 
 class InstallerHandler implements RequestHandlerInterface
 {
diff --git a/src/Service/NotificationService.php b/src/Service/NotificationService.php
index c80f0ca..064a7ec 100644
--- a/src/Service/NotificationService.php
+++ b/src/Service/NotificationService.php
@@ -11,7 +11,7 @@
 use Notification\Sender\SMS\Nexmo;
 use Notification\Sender\SMS\PayamakYab;
 use Notification\Sender\SMS\Twilio;
-use User\Service\UtilityService;
+use Pi\Core\Service\UtilityService;
 
 class NotificationService implements ServiceInterface
 {