diff --git a/package.json b/package.json
index 1a42a4a..8d794a0 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "grunt-mocha-phantomjs": "^4.0.0",
     "grunt-mocha-test": "^0.13.2",
     "grunt-noflo-browser": "^1.5.0",
-    "mocha": "^5.0.0"
+    "mocha": "^6.1.4"
   },
   "keywords": ["noflo"],
   "scripts": {