diff --git a/package.json b/package.json
index 089f780..7fe0cd8 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   "devDependencies": {
     "assume": "~1.5.0",
     "istanbul": "~0.4.5",
-    "mocha": "~4.1.0",
+    "mocha": "~5.0.0",
     "pre-commit": "~1.2.0",
     "request": "~2.83.0",
     "spdy": "~3.4.4"