diff --git a/README.md b/README.md
index 5b5f4a02..2f349a77 100644
--- a/README.md
+++ b/README.md
@@ -117,12 +117,22 @@ complex, and error-prone.
 
 Include `shoulda-matchers` in your Gemfile:
 
+For Rails 4.x:
+
 ``` ruby
 group :test do
   gem 'shoulda-matchers', '~> 3.1'
 end
 ```
 
+For Rails 5.0:
+
+``` ruby
+group :test do
+  gem 'shoulda-matchers', git: 'https://github.com/thoughtbot/shoulda-matchers.git', branch: 'rails-5'
+end
+```
+
 Now you need to tell the gem a couple of things:
 
 * Which test framework you're using