diff --git a/Plugin/Magento/Ui/Component/Wysiwyg/ConfigPlugin.php b/Plugin/Magento/Ui/Component/Wysiwyg/ConfigPlugin.php
index 8257577..69d96d5 100644
--- a/Plugin/Magento/Ui/Component/Wysiwyg/ConfigPlugin.php
+++ b/Plugin/Magento/Ui/Component/Wysiwyg/ConfigPlugin.php
@@ -37,8 +37,8 @@ class ConfigPlugin
      */
     public function __construct(
         $activeEditor = null,
-        RequestInterface $request = null,
-        ScopeConfigInterface $scopeConfig = null
+        ?RequestInterface $request = null,
+        ?ScopeConfigInterface $scopeConfig = null
     ) {
         try {
             /* Fix for Magento 2.1.x & 2.2.x that does not have this class and plugin should not work there */