diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index 721b1eee3c028603c2f41fae11d755f8692d1ba0..102bca2c1752accd58da615dc2050830c7b18cf9 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:latest
+FROM debian:bullseye
 
 RUN echo "deb http://deb.debian.org/debian buster-backports main" > /etc/apt/sources.list.d/buster-backports.list
 RUN apt-get update