diff --git a/package.json b/package.json
index 0a231e3..15e04eb 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
   },
   "devDependencies": {
     "chai": "3.3.0",
-    "coffee-script": "1.10.0",
+    "coffee-script": "1.11.1",
     "mocha": "2.5.3"
   },
   "engines": {