diff --git a/Dockerfile b/Dockerfile
index 5a44628f5..b4e56ec8c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,16 +1,16 @@
-FROM ubuntu:xenial-20190222
+FROM ubuntu:bionic
 
 ARG BUILD_DATE
 ARG VCS_REF
-ARG VERSION=11.11.3
+ARG VERSION=12.0.3
 
 ENV GITLAB_VERSION=${VERSION} \
-    RUBY_VERSION=2.5 \
+    RUBY_VERSION=2.6 \
     GOLANG_VERSION=1.12.6 \
-    GITLAB_SHELL_VERSION=9.1.0 \
+    GITLAB_SHELL_VERSION=9.3.0 \
     GITLAB_WORKHORSE_VERSION=8.7.0 \
-    GITLAB_PAGES_VERSION=1.5.0 \
-    GITALY_SERVER_VERSION=1.42.4 \
+    GITLAB_PAGES_VERSION=1.6.1 \
+    GITALY_SERVER_VERSION=1.47.0 \
     GITLAB_USER="git" \
     GITLAB_HOME="/home/git" \
     GITLAB_LOG_DIR="/var/log/gitlab" \
@@ -27,27 +27,27 @@ ENV GITLAB_INSTALL_DIR="${GITLAB_HOME}/gitlab" \
 
 RUN apt-get update \
  && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \
-      wget ca-certificates apt-transport-https \
+      wget ca-certificates apt-transport-https gnupg \
  && apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv E1DD270288B4E6030699E45FA1715D88E1DF1F24 \
- && echo "deb http://ppa.launchpad.net/git-core/ppa/ubuntu xenial main" >> /etc/apt/sources.list \
+ && 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 80F70E11F0F0D5F10CB20E62F5DA5F09C3173AA6 \
- && echo "deb http://ppa.launchpad.net/brightbox/ruby-ng/ubuntu xenial main" >> /etc/apt/sources.list \
+ && echo "deb http://ppa.launchpad.net/brightbox/ruby-ng/ubuntu bionic main" >> /etc/apt/sources.list.d/ruby.list \
  && apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 8B3981E7A6852F782CC4951600A6F0A3C300EE8C \
- && echo "deb http://ppa.launchpad.net/nginx/stable/ubuntu xenial main" >> /etc/apt/sources.list \
+ && echo "deb http://ppa.launchpad.net/nginx/stable/ubuntu bionic main" >> /etc/apt/sources.list.d/nginx.list \
  && wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - \
- && echo 'deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main' > /etc/apt/sources.list.d/pgdg.list \
+ && echo 'deb http://apt.postgresql.org/pub/repos/apt/ bionic-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_8.x xenial main' > /etc/apt/sources.list.d/nodesource.list \
+ && echo 'deb https://deb.nodesource.com/node_8.x bionic 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 \
  && apt-get update \
  && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \
       sudo supervisor logrotate locales curl \
       nginx openssh-server mysql-client postgresql-client redis-tools \
-      git-core gnupg2 ruby${RUBY_VERSION} python2.7 python-docutils nodejs yarn gettext-base \
+      git-core gnupg2 ruby${RUBY_VERSION} python3 python3-docutils nodejs yarn gettext-base \
       libmysqlclient20 libpq5 zlib1g libyaml-0-2 libssl1.0.0 \
-      libgdbm3 libreadline6 libncurses5 libffi6 \
-      libxml2 libxslt1.1 libcurl3 libicu55 libre2-dev tzdata unzip libimage-exiftool-perl \
+      libgdbm5 libreadline7 libncurses5 libffi6 \
+      libxml2 libxslt1.1 libcurl4 libicu60 libre2-dev tzdata unzip libimage-exiftool-perl \
  && update-locale LANG=C.UTF-8 LC_MESSAGES=POSIX \
  && locale-gen en_US.UTF-8 \
  && DEBIAN_FRONTEND=noninteractive dpkg-reconfigure locales \