diff --git a/package.json b/package.json
index 4b49785..ee89046 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "grunt-mocha-phantomjs": "^4.0.0",
     "grunt-mocha-test": "^0.13.2",
     "grunt-noflo-browser": "^1.5.1",
-    "mocha": "^5.0.0",
+    "mocha": "^5.1.1",
     "noflo-core": ">= 0.4.0",
     "nyc": "^11.3.0"
   },