diff --git a/dockerfiles/bookworm.Dockerfile b/dockerfiles/bookworm.Dockerfile
index 89fb6f2..5859e4a 100644
--- a/dockerfiles/bookworm.Dockerfile
+++ b/dockerfiles/bookworm.Dockerfile
@@ -1,6 +1,7 @@
 ARG RUBY_VERSION="3.4.3"
 ARG BASE_REGISTRY="docker.io"
-FROM ${BASE_REGISTRY}/ruby:${RUBY_VERSION}-slim-bookworm AS base
+ARG DEBIAN_VERSION="bookworm"
+FROM ${BASE_REGISTRY}/ruby:${RUBY_VERSION}-slim-${DEBIAN_VERSION} AS base
 
 WORKDIR /kubernaut