diff --git a/package.json b/package.json
index 0cdd850..a1b1c18 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,9 @@
   "devDependencies": {
     "bluebird": "^3.3.0",
     "broccoli-asset-rev": "^2.2.0",
+    "broccoli-auto-generated": "^0.0.3",
+    "broccoli-funnel": "^1.0.1",
+    "broccoli-merge-trees": "^1.1.1",
     "broccoli-sass": "^0.7.0",
     "broccoli-strip-debug": "^1.1.0",
     "ember-ajax": "0.7.1",