diff --git a/Dockerfile.production b/Dockerfile.production
index ae37e23..025393f 100644
--- a/Dockerfile.production
+++ b/Dockerfile.production
@@ -1,8 +1,8 @@
 # https://github.com/nginxinc/docker-nginx-unprivileged/blob/master/stable/buster/Dockerfile
 
-From debian:buster-slim
+From registry.0xacab.org/georg/mat2-ci-images:debian
 
-LABEL maintainer="Mat-Web Maintainer <jan.friedli@immerda.ch>"
+LABEL maintainer="Mat-Web Co-Maintainer <jan.friedli@immerda.ch>"
 
 WORKDIR /var/www/mat2-web
 
@@ -13,12 +13,9 @@ RUN set -x \
     && adduser --system --disabled-login --ingroup nginx --no-create-home --home /nonexistent --gecos "nginx user" --shell /bin/false --uid 101 nginx \
     && apt-get update \
     && apt-get install --no-install-recommends --no-install-suggests -y \
-        gnupg1  \
         ca-certificates \
         nginx \
-        gettext-base \
         systemd \
-        mat2 \
         uwsgi \
         uwsgi-plugin-python3 \
         python3-pip \