diff --git a/composer.json b/composer.json
index 9ff93c7dcf6..993f679d475 100644
--- a/composer.json
+++ b/composer.json
@@ -83,7 +83,9 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2019.03.x-dev"
+            "dev-2017.12": "2017.12.x-dev",
+            "dev-2019.03": "2019.03.x-dev",
+            "dev-master": "2020.99.x-dev"
         }
     }
 }