diff --git a/Dockerfile b/Dockerfile
index de6bd6f..c6690ba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
-FROM ubuntu:16.04
+FROM ubuntu:20.04
 
 LABEL maintainer="dev@mirantis.com"
+LABEL build_date="2021-03-23"
 
 ENV DEBIAN_FRONTEND=noninteractive \
     DEBCONF_NONINTERACTIVE_SEEN=true \
@@ -18,21 +19,20 @@
 WORKDIR /var/lib/
 COPY bin/ /usr/local/bin/
 COPY test_set/ ./
-#
+
 RUN set -exo pipefail; pushd /etc/apt/ && echo > sources.list && \
     echo 'Acquire::Languages "none";' > apt.conf.d/docker-no-languages && \
     echo 'Acquire::GzipIndexes "true"; Acquire::CompressionTypes::Order:: "gz";' > apt.conf.d/docker-gzip-indexes && \
     echo 'APT::Get::Install-Recommends "false"; APT::Get::Install-Suggests "false";' > apt.conf.d/docker-recommends && \
-    echo "deb [arch=amd64] $UBUNTU_MIRROR_URL xenial main restricted universe multiverse" >> sources.list && \
-    echo "deb [arch=amd64] $UBUNTU_MIRROR_URL xenial-updates main restricted universe multiverse" >> sources.list && \
-    echo "deb [arch=amd64] $UBUNTU_MIRROR_URL xenial-backports main restricted universe multiverse" >> sources.list && \
+    echo "deb [arch=amd64] $UBUNTU_MIRROR_URL focal main restricted universe multiverse" >> sources.list && \
+    echo "deb [arch=amd64] $UBUNTU_MIRROR_URL focal-updates main restricted universe multiverse" >> sources.list && \
+    echo "deb [arch=amd64] $UBUNTU_MIRROR_URL focal-backports main restricted universe multiverse" >> sources.list && \
     popd ; apt-get update && apt-get  upgrade -y && \
-    apt-get install -y build-essential curl git-core iputils-ping libffi-dev libldap2-dev libsasl2-dev libssl-dev patch python-dev python-pip python3-dev python3-pip  vim-tiny wget \
-    python-virtualenv \
-# Enable these packages while porting to Python3  =>  python3-virtualenv python3-dev  \
+    apt-get install -y build-essential curl git-core iputils-ping libffi-dev libldap2-dev libsasl2-dev libssl-dev patch vim-tiny wget \
+    virtualenv python2.7 python2.7-dev python3.8 python3.8-dev python3-pip  \
 # Due to upstream bug we should use fixed version of pip
-    && pip install -U pip==20.0.2  \
-    && pip install tox  \
+    && pip3 install -U pip==20.0.2  \
+    && pip3 install tox  \
     # initialize cvp stacklight test suite
         && mkdir cvp-stacklight \
         && pushd cvp-stacklight  \
@@ -45,7 +45,6 @@
     && apt-get -y purge libx11-data xauth libxmuu1 libxcb1 libx11-6 libxext6 ppp pppconfig pppoeconf popularity-contest cpp gcc g++ libssl-doc && \
     apt-get -y autoremove; apt-get -y clean ; rm -rf /root/.cache; rm -rf /var/lib/apt/lists/* && \
     rm -rf /tmp/* ; rm -rf /var/tmp/* ; rm -rfv /etc/apt/sources.list.d/* ; echo > /etc/apt/sources.list \
-
 # Download iperf package
     && wget http://ftp.br.debian.org/debian/pool/main/i/iperf/iperf_2.0.5+dfsg1-2_amd64.deb -O /var/lib/iperf_2.0.5+dfsg1-2_amd64.deb
 
diff --git a/test_set/cvp-sanity/requirements.txt b/test_set/cvp-sanity/requirements.txt
index 881d76e..7636877 100644
--- a/test_set/cvp-sanity/requirements.txt
+++ b/test_set/cvp-sanity/requirements.txt
@@ -1,10 +1,11 @@
-pytest==3.7.1
-pytest-rerunfailures==7.0
-requests==2.24.0
-flake8==3.8.3
-PyYAML==5.3.1
-python-jenkins==1.7.0
-pygerrit2==2.0.9
-GitPython==3.1.7
-ldap3==2.7
+pytest>=3.10
+pytest-rerunfailures>=7.0
+requests>=2.24.0
+flake8>=3.8.3
+PyYAML>=5.4
+python-jenkins>=1.7.0
+pygerrit2>=2.0.9
+GitPython>=3.1.7
+ldap3>=2.7
+
 
diff --git a/test_set/cvp-spt/requirements.txt b/test_set/cvp-spt/requirements.txt
index 294aece..6898f80 100644
--- a/test_set/cvp-spt/requirements.txt
+++ b/test_set/cvp-spt/requirements.txt
@@ -5,6 +5,6 @@
 python-keystoneclient==3.22.0  # Apache-2.0
 python-neutronclient==7.1.0 # Apache-2.0
 python-novaclient==7.1.0
-PyYAML==5.3.1  # MIT
+PyYAML>=5.4  # MIT
 requests==2.24.0 # Apache-2.0
-texttable==1.2.0
\ No newline at end of file
+texttable==1.2.0
diff --git a/test_set/tox.ini b/test_set/tox.ini
index b68781e..dee7131 100644
--- a/test_set/tox.ini
+++ b/test_set/tox.ini
@@ -10,7 +10,7 @@
 commands = {posargs:pytest --version}
 
 [testenv:cvp-sanity]
-basepython = python3.5
+basepython = python3.8
 deps = -rcvp-sanity/requirements.txt
 changedir = cvp-sanity