diff --git a/package.json b/package.json
index 35e85db..4151c66 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   "devDependencies": {
     "assume": "~1.5.0",
     "istanbul": "0.4.x",
-    "mocha": "~3.3.0",
+    "mocha": "~3.4.0",
     "pre-commit": "~1.2.0",
     "zuul": "~3.11.1"
   }