diff --git a/package.json b/package.json
index eb04536..9fe036c 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "karma-phantomjs-launcher": "1.0.4",
     "lodash.isempty": "4.4.0",
     "lodash.isequal": "4.5.0",
-    "mocha": "3.5.2",
+    "mocha": "4.0.0",
     "mocha-bamboo-reporter": "1.1.1",
     "nock": "9.0.19",
     "phantomjs-prebuilt": "2.1.15",