diff --git a/package.json b/package.json
index 6bc0233..81a98bb 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,6 @@
   "homepage": "https://github.com/ghaiklor/jsklass",
   "devDependencies": {
     "istanbul": "^0.4.5",
-    "mocha": "^3.2.0"
+    "mocha": "^3.4.2"
   }
 }