diff --git a/package.json b/package.json
index 8281ef2..541b67a 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "grunt-contrib-coffee": "^2.0.0",
     "grunt-mocha-test": "^0.13.2",
     "grunt-shell-spawn": "^0.3.1",
-    "mocha": "^5.0.0",
+    "mocha": "^6.2.2",
     "mqtt": "^2.7.1"
   },
   "keywords": [],