diff --git a/package.json b/package.json
index 66fb84f..776494c 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "fs-monkey": "0.3.1"
   },
   "devDependencies": {
-    "mocha": "3.5.3",
+    "mocha": "5.0.5",
     "chai": "4.1.2",
     "typescript": "2.7.2",
     "ts-node": "3.3.0",