diff --git a/package.json b/package.json
index 99f22e1..1652fbb 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "chai": "^4.1.2",
     "eslint": "^4.11.0",
     "eslint-config-pedant": "^1.0.0",
-    "mocha": "^4.0.1",
+    "mocha": "^5.0.5",
     "nyc": "^11.3.0"
   }
 }