diff --git a/Dockerfile b/Dockerfile
index 2963819..9a048e4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-kasmvnc:debianbullseye
+FROM ghcr.io/linuxserver/baseimage-kasmvnc:debianbookworm
 
 # set version label
 ARG BUILD_DATE
diff --git a/README.md b/README.md
index 6d5f45f..96f02d3 100644
--- a/README.md
+++ b/README.md
@@ -317,4 +317,5 @@ Once registered you can define the dockerfile to use with `-f Dockerfile.aarch64
 
 ## Versions
 
+* **06.01.24:** - Rebase to Debian Bookworm.
 * **09.04.23:** - Initial release.
diff --git a/readme-vars.yml b/readme-vars.yml
index 920501a..f223360 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -78,4 +78,5 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "06.01.24:", desc: "Rebase to Debian Bookworm." }
   - { date: "09.04.23:", desc: "Initial release." }