diff --git a/package.json b/package.json
index 3da2c6a..a631058 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
   "devDependencies": {
     "benchmarked": "^2.0.0",
     "istanbul": "^0.4.0",
-    "mocha": "^3.1.2",
+    "mocha": "^5.0.0",
     "standard": "^10.0.0"
   }
 }