diff --git a/Dockerfile b/Dockerfile
index 8230f42..f99b758 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,19 +21,26 @@
 #   devops-stages/stage-build.sh
 #
 
-FROM ubuntu:18.04
+FROM ubuntu:20.04
+
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get -y install \
         debhelper \
+        dh-python \
         git \
         python3 \
         python3-all \
         python3-dev \
         python3-setuptools
 
-RUN python3 -m easy_install pip==21.0.1
-RUN pip3 install tox==3.22.0
+RUN python3 -m easy_install pip==21.3.1
+RUN pip install tox==3.24.5
 
 ENV LC_ALL C.UTF-8
 ENV LANG C.UTF-8
diff --git a/requirements-dist.in b/requirements-dist.in
index 11f0a2a..4f8784f 100644
--- a/requirements-dist.in
+++ b/requirements-dist.in
@@ -14,4 +14,5 @@
 # limitations under the License.
 
 stdeb
-setuptools-version-command
\ No newline at end of file
+setuptools-version-command
+setuptools<60
\ No newline at end of file
diff --git a/requirements-dist.txt b/requirements-dist.txt
index 7393626..8192b48 100644
--- a/requirements-dist.txt
+++ b/requirements-dist.txt
@@ -1,10 +1,3 @@
-setuptools-version-command==2.2
-    # via -r requirements-dist.in
-stdeb==0.10.0
-    # via -r requirements-dist.in
-
-# The following packages are considered to be unsafe in a requirements file:
-# setuptools
 #######################################################################################
 # Copyright ETSI Contributors and Others.
 #
@@ -21,3 +14,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #######################################################################################
+setuptools-version-command==99.9
+    # via -r requirements-dist.in
+stdeb==0.10.0
+    # via -r requirements-dist.in
+
+# The following packages are considered to be unsafe in a requirements file:
+setuptools==59.8.0
+    # via
+    #   -r requirements-dist.in
+    #   setuptools-version-command
diff --git a/requirements-test.txt b/requirements-test.txt
index 58e185a..bfa751a 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -1,27 +1,3 @@
-attrs==20.3.0
-    # via pytest
-coverage==5.5
-    # via
-    #   -r requirements-test.in
-    #   nose2
-iniconfig==1.1.1
-    # via pytest
-nose2==0.10.0
-    # via -r requirements-test.in
-packaging==20.9
-    # via pytest
-pluggy==0.13.1
-    # via pytest
-py==1.10.0
-    # via pytest
-pyparsing==2.4.7
-    # via packaging
-pytest==6.2.2
-    # via -r requirements-test.in
-six==1.15.0
-    # via nose2
-toml==0.10.2
-    # via pytest
 #######################################################################################
 # Copyright ETSI Contributors and Others.
 #
@@ -38,3 +14,27 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #######################################################################################
+attrs==21.4.0
+    # via pytest
+coverage==6.2
+    # via
+    #   -r requirements-test.in
+    #   nose2
+iniconfig==1.1.1
+    # via pytest
+nose2==0.10.0
+    # via -r requirements-test.in
+packaging==21.3
+    # via pytest
+pluggy==1.0.0
+    # via pytest
+py==1.11.0
+    # via pytest
+pyparsing==3.0.6
+    # via packaging
+pytest==6.2.5
+    # via -r requirements-test.in
+six==1.16.0
+    # via nose2
+toml==0.10.2
+    # via pytest
diff --git a/requirements.in b/requirements.in
index 1ce6a65..b8e0f2e 100644
--- a/requirements.in
+++ b/requirements.in
@@ -13,8 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-pymongo
+pymongo<4
 aiokafka
-pyyaml
+pyyaml==5.4.1
 pycrypto
 dataclasses
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 2ca19f5..5d297e0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,15 +1,3 @@
-aiokafka==0.7.0
-    # via -r requirements.in
-dataclasses==0.6
-    # via -r requirements.in
-kafka-python==2.0.2
-    # via aiokafka
-pycrypto==2.6.1
-    # via -r requirements.in
-pymongo==3.11.3
-    # via -r requirements.in
-pyyaml==5.4.1
-    # via -r requirements.in
 #######################################################################################
 # Copyright ETSI Contributors and Others.
 #
@@ -26,3 +14,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #######################################################################################
+aiokafka==0.7.2
+    # via -r requirements.in
+dataclasses==0.6
+    # via -r requirements.in
+kafka-python==2.0.2
+    # via aiokafka
+pycrypto==2.6.1
+    # via -r requirements.in
+pymongo==3.12.3
+    # via -r requirements.in
+pyyaml==5.4.1
+    # via -r requirements.in
diff --git a/tox.ini b/tox.ini
index 9ab9b460..ce0ffcb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,7 +23,7 @@
 
 [testenv]
 usedevelop = True
-basepython = python3
+basepython = python3.8
 setenv = VIRTUAL_ENV={envdir}
          PYTHONDONTWRITEBYTECODE = 1
 deps =  -r{toxinidir}/requirements.txt
@@ -76,13 +76,18 @@
 
 #######################################################################################
 [testenv:pip-compile]
-deps =  pip-tools==5.5.0
+deps =  pip-tools==6.4.0
+skip_install = true
+whitelist_externals = bash
+        [
 commands =
-        - sh -c 'for file in requirements*.in ; do pip-compile -rU --no-header $file ;\
-        out=`echo $file | sed "s/.in/.txt/"` ; \
-        head -16 tox.ini >> $out ;\
-        done'
-whitelist_externals = sh
+        - bash -c "for file in requirements*.in ; do \
+        UNSAFE="" ; \
+        if [[ $file =~ 'dist' ]] ; then UNSAFE='--allow-unsafe' ; fi ; \
+        pip-compile -rU --no-header $UNSAFE $file ;\
+        out=`echo $file | sed 's/.in/.txt/'` ; \
+        sed -i -e '1 e head -16 tox.ini' $out ;\
+        done"
 
 #######################################################################################
 [testenv:dist]