README.md in spree-2.1.9 vs README.md in spree-2.1.10

@@ -32,12 +32,12 @@
 
 The fastest way to get started is by using the spree command line tool
 available in the spree gem which will add Spree to an existing Rails application.
 
 ```shell
-gem install rails -v 4.0.9
+gem install rails -v 4.0.12
 gem install spree
-rails _4.0.9_ new my_store
+rails _4.0.12_ new my_store
 spree install my_store
 ```
 
 This will add the Spree gem to your Gemfile, create initializers, copy migrations
 and optionally generate sample products and orders.