diff --git a/src/Manager/PolicyRuleManager.php b/src/Manager/PolicyRuleManager.php
index a84a063..46e2fac 100644
--- a/src/Manager/PolicyRuleManager.php
+++ b/src/Manager/PolicyRuleManager.php
@@ -16,7 +16,7 @@ class PolicyRuleManager implements PolicyRuleManagerInterface
     /** @var array **/
     private $rules = [];
 
-    public function __construct(Configuration $configuration, AttributeManager $attributeManager)
+    public function __construct(ConfigurationInterface $configuration, AttributeManagerInterface $attributeManager)
     {
         $this->attributeManager = $attributeManager;
         $this->rules = $configuration->getRules();