diff --git a/README.md b/README.md
index b319dac44..e2487ce32 100644
--- a/README.md
+++ b/README.md
@@ -76,7 +76,7 @@ GitHub): http://groups.google.com/group/ruby-capybara
 
 ## <a name="setup"></a>Setup
 
-Capybara requires Ruby 2.3.0 or later. To install, add this line to your
+Capybara requires Ruby 2.4.0 or later. To install, add this line to your
 `Gemfile` and run `bundle install`:
 
 ```ruby