diff --git a/packages/xo-cli/package.json b/packages/xo-cli/package.json
index a72caf3db..f57a7f2c9 100644
--- a/packages/xo-cli/package.json
+++ b/packages/xo-cli/package.json
@@ -36,7 +36,7 @@
   },
   "devDependencies": {
     "chai": "^1.9.1",
-    "mocha": "^1.21.0"
+    "mocha": "^1.21.3"
   },
   "scripts": {
     "test": "mocha cli.spec.js"