diff --git a/composer.json b/composer.json
index 4e716ed..a641b74 100644
--- a/composer.json
+++ b/composer.json
@@ -43,7 +43,7 @@
 	  "thirdparty"
     ],
     "branch-alias": {
-      "dev-master": "3.0.x-dev"
+      "dev-master": "4.0.x-dev"
     }
   }
 }