diff --git a/composer.json b/composer.json
index f3e191271d9..fb2d526e739 100644
--- a/composer.json
+++ b/composer.json
@@ -25,6 +25,7 @@
         "symfony/acl-bundle": "1.0.*",
         "twig/twig": "2.10.*",
         "doctrine/orm": "2.6.3",
+        "doctrine/persistence": "1.2.*",
         "doctrine/doctrine-bundle": "1.9.*",
         "doctrine/dbal": "2.7.*",
         "doctrine/annotations": "1.6.*",