diff --git a/src/Bridges/SecurityDI/SecurityExtension.php b/src/Bridges/SecurityDI/SecurityExtension.php
index 68ab3dbe..bb485da6 100644
--- a/src/Bridges/SecurityDI/SecurityExtension.php
+++ b/src/Bridges/SecurityDI/SecurityExtension.php
@@ -41,8 +41,8 @@ public function getConfigSchema(): Nette\Schema\Schema
 					])->castTo('array')
 				)
 			),
-			'roles' => Expect::arrayOf('string'), // role => parent(s)
-			'resources' => Expect::arrayOf('string'), // resource => parent
+			'roles' => Expect::arrayOf('string|array|null'), // role => parent(s)
+			'resources' => Expect::arrayOf('string|null'), // resource => parent
 		]);
 	}