diff --git a/composer.json b/composer.json
index 6d6071d..3ecf199 100644
--- a/composer.json
+++ b/composer.json
@@ -17,5 +17,10 @@
         "generate": "sculpin generate --clean --no-interaction",
         "prod": "composer run-script generate -- --env prod",
         "watch": "composer run-script --timeout=0 generate -- --server --watch"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.1-dev"
+        }
     }
 }