diff --git a/composer.json b/composer.json
index 8dfacda..d6645e4 100644
--- a/composer.json
+++ b/composer.json
@@ -44,7 +44,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "3.3.x-dev"
+            "dev-master": "4.0-dev"
         }
     },
     "scripts": {