diff --git a/composer.json b/composer.json
index 0356021..e33b413 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,8 @@
     "symfony-cmf/routing": "1.1.*@alpha",
     "easyrdf/easyrdf": "0.8.*",
     "phpunit/phpunit": "4.1.*",
-    "zendframework/zend-feed": "2.2.*"
+    "zendframework/zend-feed": "2.2.*",
+    "ocramius/proxy-manager": "0.5.*"
   },
   "autoload": {
     "psr-4": {