diff --git a/package.json b/package.json
index 63899088..8a6271da 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
     "browserify": "^13.3.0",
     "chai": "3.5.0",
     "concurrently": "^3.5.1",
+    "coveralls": "^3.0.1",
     "express": "4.13.4",
     "express-ws": "2.0.0-rc.1",
     "fs-extra": "^1.0.0",