diff --git a/README.rdoc b/README.rdoc
index fc8a225..4851e8b 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -27,7 +27,7 @@ The pagination helper outputs the HTML5 <nav> tag by default. Plus, the helper s
 
 == Supported versions
 
-* Ruby 1.8.7, 1.9.2, 1.9.3, 2.0.0, 2.1.x, 2.2.x
+* Ruby 1.8.7, 1.9.2, 1.9.3, 2.0.0, 2.1.x, 2.2.x, 2.3.x, 2.4
 
 * Rails 3.0, 3.1, 3.2, 4.0, 4.1, 4.2