diff --git a/package.json b/package.json
index 98fc02e..675ca09 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   "devDependencies": {
     "assume": "~1.5.0",
     "istanbul": "0.4.x",
-    "mocha": "~3.5.0",
+    "mocha": "~5.2.0",
     "pre-commit": "~1.2.0"
   },
   "dependencies": {