diff --git a/Dockerfile b/Dockerfile
index 4862a5e..6335bb7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:bookworm
+FROM debian:bullseye
 
 # Replace shell with bash so we can source files
 RUN rm /bin/sh && ln -s /bin/bash /bin/sh
@@ -9,7 +9,7 @@ RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selectio
 # Add contrib and backports
 RUN sed -i /etc/apt/sources.list -e 's/main/main contrib/'
 
-RUN echo 'deb http://deb.debian.org/debian bookworm-backports main' >> /etc/apt/sources.list
+RUN echo 'deb http://deb.debian.org/debian bullseye-backports main' >> /etc/apt/sources.list
 
 # Add 32 bit arch for steam crap
 RUN dpkg --add-architecture i386