diff --git a/Dockerfile b/Dockerfile
index 4e5cbdb..942acbb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/rust:1.79.0-slim-buster AS build
+FROM docker.io/library/rust:1.79.0-slim-bullseye AS build
 
 ARG RPMBUILDER_VERSION=master