diff --git a/package.json b/package.json
index 3dcda2a..5c5c4a2 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   "devDependencies": {
     "chai": "3.3.0",
     "coffee-script": "1.10.0",
-    "mocha": "2.5.3"
+    "mocha": "3.1.2"
   },
   "engines": {
     "node": ">= 4"