diff --git a/.cqfd/docker/Dockerfile b/.cqfd/docker/Dockerfile
index fcd42438d..7742ad22d 100644
--- a/.cqfd/docker/Dockerfile
+++ b/.cqfd/docker/Dockerfile
@@ -1,7 +1,7 @@
 # Copyright (C) 2021, RTE (http://www.rte-france.com)
 # SPDX-License-Identifier: Apache-2.0
 
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 ENV DEBIAN_FRONTEND noninteractive
 
@@ -9,22 +9,29 @@ ENV LANG en_US.UTF-8
 ENV LANGUAGE en_US.UTF-8
 ENV LC_ALL en_US.UTF-8
 
-RUN apt-get update && apt-get install -y \
-	bash \
-	locales \
-	ruby \
-	git \
-	ssh \
-	python3-libvirt \
-	docker.io \
-	docker-compose \
-	python3-pip
+RUN set -x \
+    && apt-get update \
+    && apt-get install -y \
+        bash \
+        docker.io \
+        docker-compose \
+        git \
+        locales \
+        python3-docutils \
+        python3-libvirt \
+        python3-netaddr \
+        python3-pip \
+        python3-pygments \
+        python3-sphinx \
+        python3-sphinx-notfound-page \
+        rstcheck \
+        ruby-asciidoctor-pdf \
+        ssh \
+        yamllint \
+    && sed -i "s/# en_US\.UTF-8 UTF-8/en_US\.UTF-8 UTF-8/" /etc/locale.gen \
+    && locale-gen \
+    && dpkg-reconfigure locales \
+    && pip install "ansible>=2.9,<2.10,!=2.9.10" \
+    && rm -rf /var/lib/{apt,dpkg,cache,log}/*
 
-RUN sed -i "s/# en_US\.UTF-8 UTF-8/en_US\.UTF-8 UTF-8/" /etc/locale.gen
-RUN locale-gen
-RUN dpkg-reconfigure locales
-# Asciidoctor PDF generator for generating the manual
-RUN gem install asciidoctor-pdf --pre -v 1.5.0.rc2
-ADD check_yaml.sh /usr/bin/check_yaml
-ADD requirements.txt /tmp/requirements.txt
-RUN python3 -m pip install -r /tmp/requirements.txt
+COPY check_yaml.sh /usr/bin/check_yaml
diff --git a/.cqfd/docker/check_yaml.sh b/.cqfd/docker/check_yaml.sh
index 5e1b9d5db..e396bd7f5 100755
--- a/.cqfd/docker/check_yaml.sh
+++ b/.cqfd/docker/check_yaml.sh
@@ -17,6 +17,41 @@ find_yaml()
         "^${1}/(ceph-ansible|roles/corosync|roles/systemd_networkd|collections)"
 }
 
+# Name        C
+# Brief       Print colorized string
+# arg1        color name (see below)
+# arg2        string
+C()
+{
+    local color="$1"; shift
+    local text="$*"
+    local nc='\033[0m'
+    local c
+
+    # Only colorize a few terminal types
+    case "$TERM" in
+    linux*|xterm*|screen|vt102) ;;
+    *)
+        echo "$@"
+        return
+        ;;
+    esac
+
+    case "$color" in
+        gray)   c='\033[1;30m' ;;
+        red)    c='\033[1;31m' ;;
+        green)  c='\033[1;32m' ;;
+        yellow) c='\033[1;33m' ;;
+        blue)   c='\033[1;34m' ;;
+        purple) c='\033[1;35m' ;;
+        cyan)   c='\033[1;36m' ;;
+
+        orange_bg) c='\033[48;2;255;165;0m'
+    esac
+
+    printf "${c}${text}${nc}"
+}
+
 directory="."
 warns="--no-warnings"
 
diff --git a/.cqfd/docker/requirements.txt b/.cqfd/docker/requirements.txt
deleted file mode 100644
index 337c23c8d..000000000
--- a/.cqfd/docker/requirements.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-# Copyright (C) 2021, RTE (http://www.rte-france.com)
-# SPDX-License-Identifier: Apache-2.0
-rstcheck
-sphinx
-sphinx-notfound-page
-Pygments >= 2.4.0
-docutils == 0.16
-ansible >=2.9,<2.10
-yamllint
-netaddr