diff --git a/composer.json b/composer.json
index 6d356cb..01b0fed 100644
--- a/composer.json
+++ b/composer.json
@@ -40,7 +40,7 @@
     "prefer-stable": true,
     "extra": {
         "branch-alias": {
-            "dev-master": "0.3.x-dev"
+            "dev-master": "0.4.x-dev"
         }
     }
 }