diff --git a/Dockerfile.common b/Dockerfile.common
index 714a6de..fdecb9a 100644
--- a/Dockerfile.common
+++ b/Dockerfile.common
@@ -3,7 +3,8 @@ ENV DEB_APT_PACKAGES="apt-file dpkg-dev fakeroot build-essential devscripts debh
 ENV TOOLS_APT_PACKAGES="sed lsb-release gnupg2 curl jq git rsync gitdch wget ca-certificates"
 ENV APT_PACKAGES="$PYTHON_APT_PACKAGES $DEB_APT_PACKAGES $TOOLS_APT_PACKAGES"
 
-ENV PIP_PACKAGES="stdeb poetry2setup wheel2deb pylint pytest flake8 flake8-junit-report pylint-junit junitparser pylint-gitlab flake8-codeclimate"
+ENV PIP_PACKAGES="stdeb poetry2setup wheel2deb pylint pytest flake8 flake8-junit-report pylint-junit junitparser flake8-codeclimate"
+ENV PIP_NEW_PACKAGES="pylint-gitlab"
 
 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 && \
diff --git a/Dockerfile.debian10 b/Dockerfile.debian10
index eacebb5..dab537d 100644
--- a/Dockerfile.debian10
+++ b/Dockerfile.debian10
@@ -5,4 +5,4 @@ FROM node:16-buster-slim
 INCLUDE+ Dockerfile.common
 
 RUN python3 -m pip install -U pip && \
-    python3 -m pip install $PIP_PACKAGES
+    python3 -m pip install $PIP_PACKAGES $PIP_NEW_PACKAGES
diff --git a/Dockerfile.debian11 b/Dockerfile.debian11
index 624779c..188e505 100644
--- a/Dockerfile.debian11
+++ b/Dockerfile.debian11
@@ -4,4 +4,4 @@ FROM node:16-bullseye-slim
 
 INCLUDE+ Dockerfile.common
 
-RUN python3 -m pip install $PIP_PACKAGES
+RUN python3 -m pip install $PIP_PACKAGES $PIP_NEW_PACKAGES
diff --git a/Dockerfile.debian12 b/Dockerfile.debian12
index e9487f2..8024b09 100644
--- a/Dockerfile.debian12
+++ b/Dockerfile.debian12
@@ -4,4 +4,4 @@ FROM node:16-bookworm-slim
 
 INCLUDE+ Dockerfile.common
 
-RUN python3 -m pip install --break-system-packages $PIP_PACKAGES
+RUN python3 -m pip install --break-system-packages $PIP_PACKAGES $PIP_NEW_PACKAGES
diff --git a/Dockerfile.debian9 b/Dockerfile.debian9
new file mode 100644
index 0000000..67aecec
--- /dev/null
+++ b/Dockerfile.debian9
@@ -0,0 +1,14 @@
+# syntax = edrevo/dockerfile-plus
+
+FROM debian:9
+
+RUN echo "deb http://archive.debian.org/debian stretch main" > /etc/apt/sources.list && \
+    echo "deb http://archive.debian.org/debian-security stretch/updates main" >> /etc/apt/sources.list
+
+INCLUDE+ Dockerfile.common
+
+RUN python3 -m pip install -U pip && \
+    python3 -m pip install $PIP_PACKAGES
+RUN dpkg --purge gitdch && \
+    wget -O /usr/bin/gitdch https://gitea.zionetrix.net/bn8/gitdch/raw/tag/python35/gitdch && \
+    chmod 755 /usr/bin/gitdch
diff --git a/README.md b/README.md
index 7c934fd..85edf66 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 Image with common dependencies to build Debian package of Python apps/libraries :
 
 - common Debian python packages: `python3-all python3-dev python3-pip python3-venv python3-apt python3-appdirs python3-wheel python3-git python3-setuptools`
-- common PIP installed python packages: `stdeb poetry2setup wheel2deb pylint pytest flake8 flake8-junit-report pylint-junit junitparser pylint-gitlab flake8-codeclimate`
+- common PIP installed python packages: `stdeb poetry2setup wheel2deb pylint pytest flake8 flake8-junit-report pylint-junit junitparser pylint-gitlab flake8-codeclimate`. Note: `pylint-gitlab` not available on Debian 9.
 - common Debian packages building tools: `apt-file dpkg-dev fakeroot build-essential devscripts debhelper dh-python equivs`
 - common tools: `sed lsb-release gnupg2 curl jq git rsync wget ca-certificates`
 - [gitdch](https://gitea.zionetrix.net/bn8/gitdch) tool
@@ -21,7 +21,7 @@ docker run -it -v "$(pwd)":/src -w /src docker.io/brenard/debian-python-deb
 export DOCKER_BUILDKIT=1
 export COMPOSE_DOCKER_CLI_BUILD=1
 
-for deb_version in 10 11 12
+for deb_version in 9 10 11 12
 do
     docker build -t docker.io/brenard/debian-python-deb:debian${deb_version} -f Dockerfile.debian${deb_version} .
 done
@@ -31,7 +31,7 @@ docker build -t docker.io/brenard/debian-python-deb:latest -f Dockerfile.debian$
 ## Publish
 
 ```bash
-for deb_version in 10 11 12
+for deb_version in 9 10 11 12
 do
     docker push docker.io/brenard/debian-python-deb:debian${deb_version}
 done