diff --git a/Dockerfile b/Dockerfile
index fc5f5bd..af9296a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,18 +1,15 @@
-# Copyright 2021 Canonical Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
 #
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
+#    http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-#
-##
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 ########################################################################################
 # This Dockerfile is intented for devops testing and deb package generation
 #
@@ -24,7 +21,7 @@
 #   devops-stages/stage-build.sh
 #
 
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 ARG APT_PROXY
 RUN if [ ! -z $APT_PROXY ] ; then \
@@ -35,22 +32,21 @@
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get -y install \
         debhelper \
-        dh-make \
+        dh-python \
         git \
         python3 \
         python3-all \
         python3-dev \
-        python3-setuptools
-
-RUN python3 -m easy_install pip==21.3.1
-RUN pip install tox==3.24.5
+        python3-setuptools \
+        python3-pip \
+        tox
 
 ENV LC_ALL C.UTF-8
 ENV LANG C.UTF-8
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get -y install \
-        unzip
+        dh-make
 
 RUN curl https://get.helm.sh/helm-v3.11.3-linux-amd64.tar.gz --output helm-v3.11.3.tar.gz \
     && tar -zxvf helm-v3.11.3.tar.gz \