diff --git a/README.md b/README.md
index 12a31fb2a..aa313567f 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ The latest version from the release branch 'master' is automatically deployed to
 
 ## Required to install
 
-- Ruby 3.3.5
+- Ruby 3.2.2
 - Ruby on Rails 7.1.2
 - PostgreSQL 12
 - Puma as a web server