diff --git a/src/Sylius/Bundle/PaymentBundle/Checker/GatewayConfigEncryptionCheckerInterface.php b/src/Sylius/Bundle/PaymentBundle/Checker/GatewayConfigEncryptionCheckerInterface.php
index 5c8b28e908..8c07fe741d 100644
--- a/src/Sylius/Bundle/PaymentBundle/Checker/GatewayConfigEncryptionCheckerInterface.php
+++ b/src/Sylius/Bundle/PaymentBundle/Checker/GatewayConfigEncryptionCheckerInterface.php
@@ -1,7 +1,17 @@
 <?php
 
-namespace Sylius\Bundle\PaymentBundle\Checker;
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Sylius Sp. z o.o.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
 
+declare(strict_types=1);
+
+namespace Sylius\Bundle\PaymentBundle\Checker;
 
 use Sylius\Component\Payment\Model\GatewayConfigInterface;
 
diff --git a/src/Sylius/Bundle/PayumBundle/Checker/GatewayConfigEncryptionChecker.php b/src/Sylius/Bundle/PayumBundle/Checker/GatewayConfigEncryptionChecker.php
index ceae6744d6..707a6fef49 100644
--- a/src/Sylius/Bundle/PayumBundle/Checker/GatewayConfigEncryptionChecker.php
+++ b/src/Sylius/Bundle/PayumBundle/Checker/GatewayConfigEncryptionChecker.php
@@ -13,8 +13,8 @@ declare(strict_types=1);
 
 namespace Sylius\Bundle\PayumBundle\Checker;
 
-use Sylius\Bundle\PayumBundle\Model\GatewayConfigInterface;
 use Sylius\Bundle\PaymentBundle\Checker\GatewayConfigEncryptionCheckerInterface;
+use Sylius\Bundle\PayumBundle\Model\GatewayConfigInterface;
 use Sylius\Component\Payment\Model\GatewayConfigInterface as BaseGatewayConfigInterface;
 
 /** @experimental */
diff --git a/src/Sylius/Bundle/PayumBundle/DependencyInjection/Compiler/ConditionalGatewayConfigEncryptionCheckerDecoratorPass.php b/src/Sylius/Bundle/PayumBundle/DependencyInjection/Compiler/ConditionalGatewayConfigEncryptionCheckerDecoratorPass.php
index e6e00d6ee0..b9908429a8 100644
--- a/src/Sylius/Bundle/PayumBundle/DependencyInjection/Compiler/ConditionalGatewayConfigEncryptionCheckerDecoratorPass.php
+++ b/src/Sylius/Bundle/PayumBundle/DependencyInjection/Compiler/ConditionalGatewayConfigEncryptionCheckerDecoratorPass.php
@@ -20,6 +20,7 @@ use Symfony\Component\DependencyInjection\Reference;
 
 /**
  * @internal
+ *
  * @experimental
  */
 final class ConditionalGatewayConfigEncryptionCheckerDecoratorPass implements CompilerPassInterface