diff --git a/package.json b/package.json
index 1c7db51..b1435ae 100644
--- a/package.json
+++ b/package.json
@@ -32,6 +32,6 @@
   },
   "devDependencies": {
     "chai": "^3.5.0",
-    "mocha": "^2.5.3"
+    "mocha": "^3.3.0"
   }
 }