diff --git a/app/code/Magento/AsynchronousOperations/Model/Operation.php b/app/code/Magento/AsynchronousOperations/Model/Operation.php
index 9e0039d2ee151..de2b56d0a0dd7 100644
--- a/app/code/Magento/AsynchronousOperations/Model/Operation.php
+++ b/app/code/Magento/AsynchronousOperations/Model/Operation.php
@@ -17,7 +17,7 @@ class Operation extends DataObject implements OperationInterface
     /**
      * @var OperationStatusValidator
      */
-    protected $operationStatusValidator;
+    private $operationStatusValidator;
 
     /**
      * Operation constructor.
diff --git a/app/code/Magento/AsynchronousOperations/Model/OperationStatusPool.php b/app/code/Magento/AsynchronousOperations/Model/OperationStatusPool.php
index 73eeedbdb7a20..890eb8c1c8c75 100644
--- a/app/code/Magento/AsynchronousOperations/Model/OperationStatusPool.php
+++ b/app/code/Magento/AsynchronousOperations/Model/OperationStatusPool.php
@@ -15,7 +15,7 @@ class OperationStatusPool
     /**
      * @var array
      */
-    protected $statuses;
+    private $statuses;
 
     /**
      * @param array $statuses
diff --git a/app/code/Magento/AsynchronousOperations/Model/OperationStatusValidator.php b/app/code/Magento/AsynchronousOperations/Model/OperationStatusValidator.php
index 3da94f1c4d7fb..ae154edfb50f7 100644
--- a/app/code/Magento/AsynchronousOperations/Model/OperationStatusValidator.php
+++ b/app/code/Magento/AsynchronousOperations/Model/OperationStatusValidator.php
@@ -17,7 +17,7 @@ class OperationStatusValidator
     /**
      * @var OperationStatusPool
      */
-    protected $operationStatusPool;
+    private $operationStatusPool;
 
     /**
      * OperationStatusValidator constructor.