diff --git a/guides/source/getting_started.md b/guides/source/getting_started.md
index 6d837538d6..4d3d5125a7 100644
--- a/guides/source/getting_started.md
+++ b/guides/source/getting_started.md
@@ -12,7 +12,7 @@ you should be familiar with:
 
 --------------------------------------------------------------------------------
 
-WARNING. This Guide is based on Rails 3.2. Some of the code shown here will not
+WARNING. This Guide is based on Rails 4. Some of the code shown here will not
 work in earlier versions of Rails.
 
 Guide Assumptions