diff --git a/Controller/Controller.php b/Controller/Controller.php
index f47e9ba..57fb9d5 100644
--- a/Controller/Controller.php
+++ b/Controller/Controller.php
@@ -67,7 +67,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var string[]
      * @since 1.0.0
      */
-    protected static $providing = [
+    protected static array $providing = [
     ];
 
     /**
@@ -76,5 +76,5 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var string[]
      * @since 1.0.0
      */
-    protected static $dependencies = [];
+    protected static array $dependencies = [];
 }