diff --git a/composer.json b/composer.json
index 94a8ad27..942b29af 100644
--- a/composer.json
+++ b/composer.json
@@ -66,11 +66,6 @@
             "Symfony\\Cmf\\Bundle\\RoutingBundle\\Tests\\": "tests/"
         }
     },
-    "extra": {
-        "branch-alias": {
-            "dev-master": "3.x-dev"
-        }
-    },
     "config": {
         "allow-plugins": {
             "composer/package-versions-deprecated": true