diff --git a/package.json b/package.json
index 3c2560c..c4f30b9 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "grunt-exec": "^2.0.0",
     "grunt-gh-pages": "^2.0.0",
     "grunt-mocha-test": "^0.13.2",
-    "mocha": "^4.0.0",
+    "mocha": "^5.0.5",
     "phantomjs-prebuilt": "^2.1.12",
     "webpack": "^3.5.0"
   },