diff --git a/package.json b/package.json
index 9aed4be..b4767cd 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,6 @@
   },
   "homepage": "https://github.com/stealjs/steal-fuzzy-normalize#readme",
   "devDependencies": {
-    "mocha": "^3.5.0"
+    "mocha": "^5.0.4"
   }
 }