diff --git a/spec/StateResolver/CustomerStateResolverSpec.php b/spec/StateResolver/CustomerStateResolverSpec.php
index f1d7f47..56bf844 100644
--- a/spec/StateResolver/CustomerStateResolverSpec.php
+++ b/spec/StateResolver/CustomerStateResolverSpec.php
@@ -1,5 +1,10 @@
 <?php
 
+/*
+ * This file was created by developers working at BitBag
+ * Do you need more information about us and what we do? Visit our https://bitbag.io website!
+ * We are hiring developers from all over the world. Join us and start your new, exciting adventure and become part of us: https://bitbag.io/career
+*/
 declare(strict_types=1);
 
 namespace spec\BitBag\SyliusBlacklistPlugin\StateResolver;