diff --git a/Dockerfile b/Dockerfile
index 651b57d71ba820cfc5877040bc0ef2f7b9057fee..f9b5c1547e712dfe0e647982f5dfa0dad1316ccc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Base on dokken debian image
-FROM debian:10
+FROM debian:11
 
 ENV DEBIAN_FRONTEND noninteractive
 RUN /usr/bin/apt-get update && \
diff --git a/collabora-sysadmin-tools.list b/collabora-sysadmin-tools.list
index fd7249644ad9a575af8d6f0ecba958fb39801bfe..128df6c82b560fe96d3bba958ac67051f0d81c9c 100644
--- a/collabora-sysadmin-tools.list
+++ b/collabora-sysadmin-tools.list
@@ -1 +1 @@
-deb https://repositories.collabora.co.uk/sysadmin/debian buster tools
+deb https://repositories.collabora.co.uk/sysadmin/debian bullseye tools