diff --git a/package.json b/package.json
index b93b9ee..42f0038 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   "devDependencies": {
     "babel-eslint": "~3.1.3",
     "eslint": "~2.11.1",
-    "mocha": "~2.2.5",
+    "mocha": "~3.4.1",
     "should": "~6.0.1"
   }
 }