diff --git a/composer.json b/composer.json
index d138f627a..2877b764b 100644
--- a/composer.json
+++ b/composer.json
@@ -55,7 +55,8 @@
     "config": {
         "platform": {
             "php": "5.5.9"
-        }
+        },
+        "sort-packages": true
     },
     "extra": {
         "symfony-app-dir": "app",