diff --git a/Dockerfile b/Dockerfile
index c6d8466f43..a6c7d46b57 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ ARG BUILDPLATFORM=${BUILDPLATFORM}
 
 # Ruby image to use for base image, change with [--build-arg RUBY_VERSION="3.3.x"]
 # renovate: datasource=docker depName=docker.io/ruby
-ARG RUBY_VERSION="3.3.5"
+ARG RUBY_VERSION="3.3.6"
 # # Node version to use in base image, change with [--build-arg NODE_MAJOR_VERSION="20"]
 # renovate: datasource=node-version depName=node
 ARG NODE_MAJOR_VERSION="22"