diff --git a/composer.json b/composer.json
index 1671c0e..de8fbab 100644
--- a/composer.json
+++ b/composer.json
@@ -43,7 +43,7 @@
     ],
     "extra": {
         "branch-alias": {
-            "3.x-dev": "3.7.x-dev"
+            "dev-master": "4.x-dev"
         }
     },
     "suggest": {