diff --git a/package.json b/package.json
index 01bc864..5e5e354 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "test": "nodeunit ./test/index.js"
   },
   "devDependencies": {
-    "nodeunit-x": "0.15.0"
+    "nodeunit-x": "0.16.0"
   },
   "keywords": [
     "email",