diff --git a/package.json b/package.json
index c37174e..731eb02 100644
--- a/package.json
+++ b/package.json
@@ -74,7 +74,7 @@
     "expect": "^1.20.2",
     "gitbook-cli": "^2.3.0",
     "jsdom": "^9.5.0",
-    "mocha": "^3.1.0",
+    "mocha": "^3.4.0",
     "nyc": "^10.0.0",
     "react": "^15.4.1",
     "react-addons-test-utils": "^15.4.1",