diff --git a/package.json b/package.json
index 958fc9d..78c71a6 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,8 @@
     "gobble-browserify": "^0.6.1",
     "gobble-cli": "^0.4.2",
     "gobble-esperanto-bundle": "^0.2.0",
-    "gobble-rollup": "^0.3.1",
+    "gobble-rollup": "^0.5.0",
+    "gobble-rollup-babel": "^0.1.0",
     "mocha": "^2.2.4",
     "source-map": "^0.1.40"
   },