diff --git a/composer.json b/composer.json
index 6ffff3e..8833501 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
     ],
     "require": {
         "kriswallsmith/buzz": "v0.9",
-        "symfony/property-access": ">=v2.2.0"
+        "symfony/property-access": "dev-master"
     },
     "autoload": {
         "psr-0": {