diff --git a/package.json b/package.json
index ac87316..29f9d15 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,6 @@
     "nan": "^2.0.5"
   },
   "devDependencies": {
-    "mocha": "~2.1.0"
+    "mocha": "5"
   }
 }