diff --git a/package.json b/package.json
index a19bfc2..15dbd7e 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "debug": "^4.0.0"
   },
   "devDependencies": {
-    "mocha": "2.5.3",
+    "mocha": "5.2.0",
     "should": "4.6.5"
   }
 }