diff --git a/package.json b/package.json
index 53f51abd09..f828b0becb 100644
--- a/package.json
+++ b/package.json
@@ -49,6 +49,7 @@
     "mocha-phantomjs": "^4.0.2",
     "mochify": "~2.15.0",
     "mochify-istanbul": "^2.4.1",
+    "node-sass": "3.4.2",
     "phantomjs": "^1.9.19",
     "sinon": "^1.17.3",
     "sinon-chai": "^2.8.0",