diff --git a/dockerfile b/dockerfile
index 0f4b951..e9d0702 100644
--- a/dockerfile
+++ b/dockerfile
@@ -2,31 +2,27 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
-FROM debian:bullseye-slim
+FROM debian:stable-slim
 
 ARG DEBIAN_FRONTEND=noninteractive
 ARG GIT_COMMIT
 ARG VERSION
 ARG TIMESTAMP
 LABEL org.opencontainers.image.licenses="AGPL-3.0-or-later" \
-org.opencontainers.image.base.name="docker.io/debian:bullseye-slim" \
+org.opencontainers.image.base.name="docker.io/debian:stable-slim" \
 org.opencontainers.image.title=buildimage \
 org.opencontainers.image.source="https://git.schmidl.dev/schtobia/buildimage" \
 org.opencontainers.image.url="https://git.schmidl.dev/schtobia/buildimage"
 
-RUN apt update \
- && apt install --assume-yes --no-install-recommends \
-        build-essential \
-        dpkg-sig \
-        git \
- && find /var/lib/apt -type f -delete
-
-RUN useradd -rm builder
-
-USER builder
-
-WORKDIR /workdir
-
 LABEL org.opencontainers.image.revision=${GIT_COMMIT}
 LABEL org.opencontainers.image.version=${VERSION}
 LABEL org.opencontainers.image.created=${TIMESTAMP}
+
+RUN apt update \
+ && apt install --assume-yes --no-install-recommends \
+        build-essential \
+        git \
+ && find /var/lib/apt -type f -delete
+
+VOLUME /workdir
+WORKDIR /workdir