diff --git a/composer.json b/composer.json
index 624e9cde..4d2705f8 100644
--- a/composer.json
+++ b/composer.json
@@ -1,10 +1,10 @@
 {
     "name": "zendframework/zend-permissions-rbac",
-    "description": "Zend\\Permissions\\Rbac component",
+    "description": "provides a role-based access control management",
     "license": "BSD-3-Clause",
     "keywords": [
         "zf2",
-        "permissions-rbac"
+        "Rbac"
     ],
     "homepage": "https://github.com/zendframework/zend-permissions-rbac",
     "autoload": {
@@ -13,7 +13,7 @@
         }
     },
     "require": {
-        "php": ">=5.3.23"
+        "php": ">=5.3.3"
     },
     "extra": {
         "branch-alias": {
@@ -21,14 +21,14 @@
             "dev-develop": "2.5-dev"
         }
     },
-    "require-dev": {
-        "fabpot/php-cs-fixer": "1.7.*",
-        "satooshi/php-coveralls": "dev-master",
-        "phpunit/PHPUnit": "~4.0"
-    },
     "autoload-dev": {
         "psr-4": {
             "ZendTest\\Permissions\\Rbac\\": "test/"
         }
+    },
+    "require-dev": {
+        "fabpot/php-cs-fixer": "1.7.*",
+        "satooshi/php-coveralls": "dev-master",
+        "phpunit/PHPUnit": "~4.0"
     }
 }
\ No newline at end of file
diff --git a/src/AbstractRole.php b/src/AbstractRole.php
index 3c27aaca..879728d9 100644
--- a/src/AbstractRole.php
+++ b/src/AbstractRole.php
@@ -10,8 +10,6 @@
 
 namespace Zend\Permissions\Rbac;
 
-use RecursiveIteratorIterator;
-
 /**
  * @category   Zend
  * @package    Zend_Permissions