diff --git a/composer.json b/composer.json
index 7fa01ad4..f8eeb5bc 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
     "minimum-stability": "dev",
     "extra": {
         "branch-alias": {
-            "dev-master": "5.0-dev"
+            "dev-master": "5.1-dev"
         }
     }
 }