diff --git a/composer.json b/composer.json
index dedf6b0..22004fb 100644
--- a/composer.json
+++ b/composer.json
@@ -25,9 +25,6 @@
         "silverstripe/asset-admin": "^2"
     },
     "extra": {
-        "branch-alias": {
-            "dev-master": "4.x-dev"
-        },
         "expose": [
             "client/dist",
             "client/lang"