diff --git a/package.json b/package.json
index 49d73a8..75b4f8b 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   "devDependencies": {
     "chai": "3.x.x",
     "coveralls": "^2.11.12",
-    "mocha": "3.2.0",
+    "mocha": "3.4.0",
     "nyc": "^10.0.0",
     "xo": "^0.19.0"
   },