diff --git a/Dockerfile b/Dockerfile
index a0a9058dbc788512bffc3cfb6d0da54c85dc3447..749ba68f7ccfd981b4e1b1978a75963f39043505 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,17 +4,17 @@ ARG DOCKER_IMAGE_UBUNTU=$DOCKER_REGISTRY/tools/docker/ubuntu/main
 
 ############################################################
 
-FROM $DOCKER_IMAGE_GIT:latest AS git
+FROM $DOCKER_IMAGE_GIT AS git
 RUN set -ex && \
 	( git clone --depth=1 https://gitlab.cyberbrain.pw/tools/mirror/sopds.git /tmp || echo error: failed to clone master repository. ) && \
 	ls -la /tmp
 
 ############################################################
 
-FROM $DOCKER_IMAGE_UBUNTU:latest AS base
+FROM python:3.11-slim AS base
 ENV PYTHONDONTWRITEBYTECODE 1
 ENV PYTHONUNBUFFERED 1
-ENV BASE_DEPENDENCIES="python3 python3-venv libpq5 libmariadb3 libxml2 libxslt1.1 libffi8 libjpeg8 zlib1g xz-utils bzip2"
+ENV BASE_DEPENDENCIES="libpq5 libmariadb3 libxml2 libxslt1.1 libffi8 libjpeg62-turbo zlib1g xz-utils bzip2"
 ENV PATH="/opt/sopds/bin:$PATH"
 WORKDIR /home/sopds
 RUN apt-get update && \