diff --git a/package.json b/package.json
index 9c88fed..3146ffd 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
   },
   "dependencies": {
     "coffeescript": "^2.5.1",
-    "natural": "^4.0.0",
+    "natural": "^6.2.0",
     "noflo": "^1.3.0",
     "noflo-math": "^0.4.0"
   },