diff --git a/Helper/SendCustomer.php b/Helper/SendCustomer.php
index 8f3b8339f05becf190efc4f0ea90aa29ecf21375..00c1e6d8e2e255fc7acfdf8bb7aec140c567b3b5 100755
--- a/Helper/SendCustomer.php
+++ b/Helper/SendCustomer.php
@@ -28,27 +28,27 @@ class SendCustomer extends AbstractHelper
     /**
      * @var array
      */
-    protected $data;
+    protected array $data;
 
     /**
      * @var StoreRepositoryInterface
      */
-    protected $storeRepository;
+    protected StoreRepositoryInterface $storeRepository;
 
     /**
      * @var Filesystem
      */
-    protected $filesystem;
+    protected Filesystem $filesystem;
 
     /**
      * @var DirectoryList
      */
-    protected $directoryList;
+    protected DirectoryList $directoryList;
 
     /**
      * @var Csv
      */
-    protected $csvProcessor;
+    protected Csv $csvProcessor;
 
     /**
      * SendCustomer constructor.
diff --git a/Observer/CustomerRegisterSuccess.php b/Observer/CustomerRegisterSuccess.php
index 6ea620dfd7d6b2ceb65a63a74cce4f78238f534f..075b93f82c4558d02c4ee11aeedba5946a7fed2a 100644
--- a/Observer/CustomerRegisterSuccess.php
+++ b/Observer/CustomerRegisterSuccess.php
@@ -22,7 +22,7 @@ class CustomerRegisterSuccess implements ObserverInterface
     /**
      * @var SendCustomer
      */
-    protected $sendCustomer;
+    protected SendCustomer $sendCustomer;
 
     /**
      * CustomerRegisterSuccess constructor.