diff --git a/bitnami/rails/README.md b/bitnami/rails/README.md
index a1e726b499f4..76e00e8cacc8 100644
--- a/bitnami/rails/README.md
+++ b/bitnami/rails/README.md
@@ -35,7 +35,7 @@ Learn more about the Bitnami tagging policy and the difference between rolling t
 
 
 * [`7`, `7-debian-10`, `7.0.3-0`, `7.0.3-0-debian-10-r22`, `latest` (7/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-rails/blob/7.0.3-0-debian-10-r22/7/debian-10/Dockerfile)
-* [`6`, `6-debian-10`, `6.1.6-0`, `6.1.6-0-debian-10-r20` (6/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-rails/blob/6.1.6-0-debian-10-r20/6/debian-10/Dockerfile)
+* [`6`, `6-debian-10`, `6.1.6-0`, `6.1.6-0-debian-10-r21` (6/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-rails/blob/6.1.6-0-debian-10-r21/6/debian-10/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/rails GitHub repo](https://github.com/bitnami/bitnami-docker-rails).