diff --git a/package.json b/package.json
index 2df7f14..d18f757 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "pkginfo": "0.2.x"
   },
   "devDependencies": {
-    "vows": "0.5.x >=0.5.11"
+    "vows": "0.6.x"
   },
   "main": "./lib/nconf",
   "scripts": { "test": "vows test/*-test.js test/**/*-test.js --spec" },