diff --git a/docker/latest/Dockerfile b/docker/latest/Dockerfile
index 4dd1cc4..2d655ee 100644
--- a/docker/latest/Dockerfile
+++ b/docker/latest/Dockerfile
@@ -1,7 +1,4 @@
 FROM debian:latest
-RUN echo "deb http://debian.zionetrix.net stable main" > /etc/apt/sources.list.d/zionetrix.list
-RUN apt-get -o Acquire::AllowInsecureRepositories=true -o Acquire::AllowDowngradeToInsecureRepositories=true update
-RUN apt-get -o APT::Get::AllowUnauthenticated=true install --yes zionetrix-archive-keyring
-RUN apt-get update
-RUN apt-get install -y python3-all python3-dev python3-pip python3-venv python3-mylib build-essential git
+RUN echo "deb http://debian.zionetrix.net stable main" > /etc/apt/sources.list.d/zionetrix.list && apt-get -o Acquire::AllowInsecureRepositories=true -o Acquire::AllowDowngradeToInsecureRepositories=true update && apt-get -o APT::Get::AllowUnauthenticated=true install --yes zionetrix-archive-keyring && apt-get clean && rm -fr rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get upgrade -y && apt-get install -y python3-all python3-dev python3-pip python3-venv python3-mylib build-essential git && apt-get clean && rm -fr rm -rf /var/lib/apt/lists/*
 RUN python3 -m pip install pylint pytest flake8 flake8-junit-report pylint-junit junitparser