diff --git a/package.json b/package.json
index b9a0c23..0cadc20 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   "devDependencies": {
     "chai": "3.3.0",
     "coffee-script": "1.10.0",
-    "mocha": "1.21.5"
+    "mocha": "2.3.3"
   },
   "engines": {
     "node": "~0.10.26"