diff --git a/charts/redhat/ruby-rails-application/src/values.schema.json b/charts/redhat/ruby-rails-application/src/values.schema.json
index b2f2c63..d67cc18 100644
--- a/charts/redhat/ruby-rails-application/src/values.schema.json
+++ b/charts/redhat/ruby-rails-application/src/values.schema.json
@@ -13,7 +13,7 @@
         "ruby_version": {
             "type": "string",
             "description": "Version of Ruby image to be used (3.0-ubi8 by default).",
-            "enum": [ "latest", "3.1-ubi8",  "3.0-ubi9", "3.1-ubi9", "3.3-ubi8", "3.3-ubi9"]
+            "enum": [ "latest", "2.5-ubi8", "3.1-ubi8", "3.3-ubi8", "3.0-ubi9", "3.1-ubi9", "3.3-ubi9"]
         },
         "memory_limit": {
             "type": "string",