diff --git a/package.json b/package.json
index dc0af20..d1f5b78 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   "devDependencies": {
     "assume": "~2.0.0",
     "istanbul": "0.4.x",
-    "mocha": "~3.5.0",
+    "mocha": "~6.1.2",
     "pre-commit": "~1.2.0",
     "zuul": "~3.11.1"
   },