diff --git a/package.json b/package.json
index bd7bf16..b6f715f 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "dependencies": {
     "chai": "^3.5.0",
     "lodash": "3.6.0",
-    "mocha": "^3.2.0",
+    "mocha": "^4.0.0",
     "moment": "^2.18.1",
     "querystring": "^0.2.0",
     "request": "2.x.x",