diff --git a/Dockerfile b/Dockerfile
index a464dd48..8a9ebe37 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:bionic-20210325
+FROM ubuntu:focal-20210325
 
 ARG VERSION=13.10.2
 
@@ -25,19 +25,20 @@ ENV GITLAB_INSTALL_DIR="${GITLAB_HOME}/gitlab" \
 RUN apt-get update \
  && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \
     wget ca-certificates apt-transport-https gnupg2 \
+ && apt-get upgrade -y \
  && rm -rf /var/lib/apt/lists/*
 
 RUN set -ex && \
- apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv E1DD270288B4E6030699E45FA1715D88E1DF1F24 \
- && echo "deb http://ppa.launchpad.net/git-core/ppa/ubuntu bionic main" >> /etc/apt/sources.list \
+    apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv E1DD270288B4E6030699E45FA1715D88E1DF1F24 \
+ && echo "deb http://ppa.launchpad.net/git-core/ppa/ubuntu focal main" >> /etc/apt/sources.list \
  && apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 80F70E11F0F0D5F10CB20E62F5DA5F09C3173AA6 \
- && echo "deb http://ppa.launchpad.net/brightbox/ruby-ng/ubuntu bionic main" >> /etc/apt/sources.list \
+ && echo "deb http://ppa.launchpad.net/brightbox/ruby-ng/ubuntu focal main" >> /etc/apt/sources.list \
  && apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 8B3981E7A6852F782CC4951600A6F0A3C300EE8C \
- && echo "deb http://ppa.launchpad.net/nginx/stable/ubuntu bionic main" >> /etc/apt/sources.list \
+ && echo "deb http://ppa.launchpad.net/nginx/stable/ubuntu focal main" >> /etc/apt/sources.list \
  && wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - \
- && echo 'deb http://apt.postgresql.org/pub/repos/apt/ bionic-pgdg main' > /etc/apt/sources.list.d/pgdg.list \
+ && echo 'deb http://apt.postgresql.org/pub/repos/apt/ focal-pgdg main' > /etc/apt/sources.list.d/pgdg.list \
  && wget --quiet -O - https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - \
- && echo 'deb https://deb.nodesource.com/node_12.x bionic main' > /etc/apt/sources.list.d/nodesource.list \
+ && echo 'deb https://deb.nodesource.com/node_12.x focal main' > /etc/apt/sources.list.d/nodesource.list \
  && wget --quiet -O - https://dl.yarnpkg.com/debian/pubkey.gpg  | apt-key add - \
  && echo 'deb https://dl.yarnpkg.com/debian/ stable main' > /etc/apt/sources.list.d/yarn.list \
  && set -ex \
@@ -46,9 +47,9 @@ RUN set -ex && \
       sudo supervisor logrotate locales curl \
       nginx openssh-server postgresql-client-12 postgresql-contrib-12 redis-tools \
       git-core ruby${RUBY_VERSION} python3 python3-docutils nodejs yarn gettext-base graphicsmagick \
-      libpq5 zlib1g libyaml-0-2 libssl1.0.0 \
-      libgdbm5 libreadline7 libncurses5 libffi6 \
-      libxml2 libxslt1.1 libcurl4 libicu60 libre2-dev tzdata unzip libimage-exiftool-perl \
+      libpq5 zlib1g libyaml-0-2 libssl1.1 \
+      libgdbm6 libreadline8 libncurses5 libffi7 \
+      libxml2 libxslt1.1 libcurl4 libicu66 libre2-dev tzdata unzip libimage-exiftool-perl \
       libmagic1 \
  && update-locale LANG=C.UTF-8 LC_MESSAGES=POSIX \
  && locale-gen en_US.UTF-8 \
diff --git a/assets/build/install.sh b/assets/build/install.sh
index 63f0c155..868e5744 100755
--- a/assets/build/install.sh
+++ b/assets/build/install.sh
@@ -43,7 +43,7 @@ DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y ${BUIL
 # only for simplicity.
 paxctl -cvm "$(command -v ruby${RUBY_VERSION})"
 # https://en.wikibooks.org/wiki/Grsecurity/Application-specific_Settings#Node.js
-paxctl -cvm "$(command -v nodejs)"
+paxctl -cvm "$(command -v node)"
 
 # remove the host keys generated during openssh-server installation
 rm -rf /etc/ssh/ssh_host_*_key /etc/ssh/ssh_host_*_key.pub