diff --git a/package.json b/package.json
index 53b4df5..0487cf2 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   "devDependencies": {
     "blanket": "1.1.7",
     "chai": "3.0.0",
-    "coffee-script": "1.9.3",
+    "coffee-script": "1.12.4",
     "mocha": "2.2.5"
   },
   "dependencies": {