diff --git a/README.md b/README.md
index 063d5ad31494e915a0b6c987c2dbe36aa9b5e525..213c23dcc298d4a4aa2da0322a9c051ea8b27bf4 100644
--- a/README.md
+++ b/README.md
@@ -503,7 +503,7 @@ The [Google Places Details API](https://developers.google.com/places/documentati
 #### Mapquest (`:mapquest`)
 
 * **API key**: required
-* **Key signup**: http://developer.mapquest.com/web/products/open
+* **Key signup**: https://developer.mapquest.com/plans
 * **Quota**: ?
 * **HTTP Headers**: when using the licensed API you can specify a referer like so:
     `Geocoder.configure(:http_headers => { "Referer" => "http://foo.com" })`