diff --git a/.circleci/config.yml b/.circleci/config.yml
index c4ef166..63a0289 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -9,10 +9,10 @@ jobs:
   build:
     machine: true
     working_directory: ~/StackStorm/st2chatops
-    parallelism: 5
+    parallelism: 4
     shell: /bin/bash --login
     environment:
-      DISTROS: xenial bionic el6 el7 el8
+      DISTROS: xenial bionic el7 el8
       ST2_PACKAGES_REPO: https://github.com/StackStorm/st2-packages
       ST2_TEST_ENVIRONMENT: https://github.com/StackStorm/st2-docker
       DEPLOY_PACKAGES: 1
@@ -107,7 +107,7 @@ jobs:
       - image: circleci/ruby:2.4
     working_directory: ~/packages
     environment:
-      DISTROS: "xenial bionic el6 el7 el8"
+      DISTROS: "xenial bionic el7 el8"
     steps:
       - attach_workspace:
           at: /home/circleci
diff --git a/docker-compose.yml b/docker-compose.yml
index 52ab322..674b1b4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -23,12 +23,6 @@ el7:
     file: docker-compose.override.yml
     service: suite
 
-el6:
-  build: ./packagingenv/centos6
-  extends:
-    file: docker-compose.override.yml
-    service: suite
-
 # Testing environments
 xenial-test:
   build: ./testingenv/xenial
@@ -53,9 +47,3 @@ el7-test:
   extends:
     file: docker-compose.override.yml
     service: suite-test
-
-el6-test:
-  build: ./testingenv/centos6
-  extends:
-    file: docker-compose.override.yml
-    service: suite-test
diff --git a/packagingenv/Dockerfile.template b/packagingenv/Dockerfile.template
index 21f120b..f2a1a61 100755
--- a/packagingenv/Dockerfile.template
+++ b/packagingenv/Dockerfile.template
@@ -4,17 +4,6 @@ FROM {{ dist }}:{{ version }}
 
 RUN yum -y install gcc-c++ make git libicu-devel rpmdevtools
 
-{%- if version in ('centos6') %}
-
-RUN wget http://people.centos.org/tru/devtools-2/devtools-2.repo -O /etc/yum.repos.d/devtools-2.repo && \
-    yum -y install devtoolset-2-gcc devtoolset-2-binutils devtoolset-2-gcc-c++
-
-ENV CC  /opt/rh/devtoolset-2/root/usr/bin/gcc
-ENV CPP /opt/rh/devtoolset-2/root/usr/bin/cpp
-ENV CXX /opt/rh/devtoolset-2/root/usr/bin/c++
-
-{%- endif %}
-
 # Add NodeSource repo
 RUN curl --silent --location https://rpm.nodesource.com/setup_10.x | bash -
 
diff --git a/packagingenv/centos6/Dockerfile b/packagingenv/centos6/Dockerfile
deleted file mode 100755
index 03d0984..0000000
--- a/packagingenv/centos6/Dockerfile
+++ /dev/null
@@ -1,19 +0,0 @@
-FROM centos:6
-
-RUN yum -y install gcc-c++ make git libicu-devel rpmdevtools
-
-RUN wget http://people.centos.org/tru/devtools-2/devtools-2.repo -O /etc/yum.repos.d/devtools-2.repo && \
-    yum -y install devtoolset-2-gcc devtoolset-2-binutils devtoolset-2-gcc-c++
-
-ENV CC  /opt/rh/devtoolset-2/root/usr/bin/gcc
-ENV CPP /opt/rh/devtoolset-2/root/usr/bin/cpp
-ENV CXX /opt/rh/devtoolset-2/root/usr/bin/c++
-
-# Add NodeSource repo
-RUN curl --silent --location https://rpm.nodesource.com/setup_10.x | bash -
-
-# Install development tools
-RUN yum -y install nodejs
-
-COPY docker-entrypoint.sh /entrypoint.sh
-ENTRYPOINT [ "/entrypoint.sh" ]
diff --git a/packagingenv/centos6/docker-entrypoint.sh b/packagingenv/centos6/docker-entrypoint.sh
deleted file mode 100755
index 1115ce5..0000000
--- a/packagingenv/centos6/docker-entrypoint.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/bash
-
-operation="${1:-build}"
-
-case "$operation" in
-pull)
-  ;;
-build)
-  rpmbuild -bb rpm/st2chatops.spec
-  cp ../*.rpm $ARTIFACT_DIR
-  ;;
-*)
-  [[ $# -gt 0 ]] && exec "$@"
-  ;;
-esac
diff --git a/rpm/st2chatops.init b/rpm/st2chatops.init
deleted file mode 100644
index 456655a..0000000
--- a/rpm/st2chatops.init
+++ /dev/null
@@ -1,160 +0,0 @@
-#!/bin/sh
-#
-### BEGIN INIT INFO
-# Provides: st2chatops
-# Required-Start: $local_fs $network $named $remote_fs $syslog
-# Required-Stop: $local_fs $network $named $remote_fs $syslog
-# Short-Description: st2chatops component
-# Description: st2chatops - StackStorm service st2chatops
-### END INIT INFO
-
-# st2chatops    This shell script takes care of starting and stopping
-#             st2chatops daemon.
-# chkconfig: - 85 15
-# description: st2chatops - StackStorm service st2chatops
-# processname: st2chatops
-
-# Source function library.
-. /etc/rc.d/init.d/functions
-
-# Source networking configuration.
-. /etc/sysconfig/network
-
-DESC="st2chatops"
-NAME=st2chatops
-DAEMON=/opt/stackstorm/chatops/bin/hubot
-DAEMON_ARGS=""
-WORKING_DIRECTORY=/opt/stackstorm/chatops
-PIDFILE=/var/run/$NAME.pid
-LOGFILE=/var/log/st2/$NAME.log
-RUNAS_USER="st2"
-RUNAS_GROUP="st2"
-
-lockfile=/var/lock/subsys/$NAME
-
-# Exit if the package is not installed
-[ -x "$DAEMON" ] || exit 5
-
-# Read configuration variable file if it is present
-set -o allexport
-[ -r /etc/sysconfig/$NAME ] && . /etc/sysconfig/$NAME
-set +o allexport
-DAEMON_ARGS=""
-
-
-# Resemble redhatish daemon behaviour but with group and user available
-#
-nohup_start() {
-  local nicelevel corelimit
-  local pid base= nice= bg=
-  local runas_user="${RUNAS_USER:-root}"
-  local runas_group="${RUNAS_GROUP:-root}"
-  nicelevel=0
-
-  base=${1##*/}
-  __pids_var_run "$base"
-
-  [ -n "$pid" ] && return
-
-  # make sure it doesn't core dump anywhere unless requested
-  corelimit="ulimit -S -c ${DAEMON_COREFILE_LIMIT:-0}"
-  # if they set NICELEVEL in /etc/sysconfig/foo, honor it
-  [ -n "${NICELEVEL:-}" ] && nice="nice -n $NICELEVEL"
-
-  # Echo daemon
-  [ "${BOOTUP:-}" = "verbose" -a -z "${LSB:-}" ] && echo -n " $base"
-
-  # make sure log file exists and owned by the same user
-  touch $LOGFILE && chown $runas_user:$runas_group $LOGFILE
-
-  # And start it up.
-  $nice runuser -s /bin/bash -g $runas_group $runas_user -c "$corelimit >/dev/null 2>&1 ; cd $WORKING_DIRECTORY && nohup </dev/null >>$LOGFILE 2>&1 $* &"
-}
-
-# Write pid of a running daemon into the pidfile
-#
-write_pidfile() {
-  local currentpid daemon=$1 pidfile=$2 base
-  base=${daemon##*/}
-  pidfile=${pidfile:-/var/run/$base.pid}
-
-  sleep 0.1
-  currentpid=$(ps -A xo pid,cmd | grep "\bbin/$base\b" | tail -n1 | awk '{print $1}')
-  [ -n "$currentpid" ] && echo $currentpid > $pidfile
-}
-
-start() {
-    echo -n $"Starting $NAME: "
-    nohup_start $DAEMON $DAEMON_ARGS
-    write_pidfile $DAEMON $PIDFILE
-    rh_status_q
-    retval=$?
-    [ $retval -eq 0 ] && success $"$NAME startup" || failure $"$NAME startup"
-    echo
-    [ $retval -eq 0 ] && touch $lockfile
-    return $retval
-}
-
-stop() {
-    echo -n $"Stopping $NAME: "
-    killproc -p $PIDFILE $DAEMON
-    retval=$?
-    echo
-    [ $retval -eq 0 ] && rm -f $lockfile
-    return $retval
-}
-
-restart() {
-    stop
-    start
-}
-
-reload() {
-    restart
-}
-
-force_reload() {
-    restart
-}
-
-rh_status() {
-    # run checks to determine if the service is running or use generic status
-    status $NAME
-}
-
-rh_status_q() {
-    rh_status >/dev/null 2>&1
-}
-
-
-case "$1" in
-    start)
-        rh_status_q && exit 0
-        $1
-        ;;
-    stop)
-        rh_status_q || exit 0
-        $1
-        ;;
-    restart)
-        $1
-        ;;
-    reload)
-        rh_status_q || exit 7
-        $1
-        ;;
-    force-reload)
-        force_reload
-        ;;
-    status)
-        rh_status
-        ;;
-    condrestart|try-restart)
-        rh_status_q || exit 0
-        restart
-        ;;
-    *)
-        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
-        exit 2
-esac
-exit $?
diff --git a/rpm/st2chatops.spec b/rpm/st2chatops.spec
index ec2f4c1..53961dc 100644
--- a/rpm/st2chatops.spec
+++ b/rpm/st2chatops.spec
@@ -38,10 +38,6 @@ Requires: /usr/bin/env
           done \
 %{nil}
 
-%if 0%{?_unitdir:1}
-  %define use_systemd 1
-%endif
-
 
 %description
   Package providing StackStorm ChatOps functionality: bundled, tested and ready to use Hubot
@@ -57,11 +53,7 @@ Requires: /usr/bin/env
 %install
   %debian_dirs
   %make_install
-%if 0%{?use_systemd}
   install -D -p -m0644 %{_builddir}/rpm/st2chatops.service %{buildroot}%{_unitdir}/st2chatops.service
-%else
-  install -D -p -m0755 %{_builddir}/rpm/st2chatops.init %{buildroot}%{_sysconfdir}/rc.d/init.d/st2chatops
-%endif
 
 %clean
   rm -rf %{buildroot}
@@ -73,11 +65,7 @@ Requires: /usr/bin/env
   /opt/stackstorm/chatops/*
   %attr(755, st2, root) %{_localstatedir}/log/st2
   %config(noreplace) %{_sysconfdir}/logrotate.d/st2chatops
-%if 0%{?use_systemd}
   %{_unitdir}/st2chatops.service
-%else
-  %{_sysconfdir}/rc.d/init.d/st2chatops
-%endif
 
 %config(noreplace) /opt/stackstorm/chatops/st2chatops.env
 %config(noreplace) /opt/stackstorm/chatops/external-scripts.json
diff --git a/testingenv/centos6/Dockerfile b/testingenv/centos6/Dockerfile
deleted file mode 100755
index 2c0277c..0000000
--- a/testingenv/centos6/Dockerfile
+++ /dev/null
@@ -1,10 +0,0 @@
-FROM centos:6
-
-# Add NodeSource repo
-RUN curl --silent --location https://rpm.nodesource.com/setup_10.x | bash -
-
-# Install development tools
-RUN yum -y install nodejs
-
-COPY docker-entrypoint.sh /entrypoint.sh
-ENTRYPOINT [ "/entrypoint.sh" ]
diff --git a/testingenv/centos6/docker-entrypoint.sh b/testingenv/centos6/docker-entrypoint.sh
deleted file mode 100755
index 2b6453e..0000000
--- a/testingenv/centos6/docker-entrypoint.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/bash
-
-operation="${1:-test}"
-
-case "$operation" in
-pull)
-  ;;
-test)
-  yum install -y $ARTIFACT_DIR/*.rpm
-  cd /opt/stackstorm/chatops
-  sed -i.bak -r "s/^# (export HUBOT_ADAPTER=slack)/\1/" st2chatops.env
-  sed -i.bak -r "s/^# (export HUBOT_SLACK_TOKEN.).*/\1$SLACK_TOKEN/" st2chatops.env
-  sed -i.bak -r "s/^(export ST2_AUTH_USERNAME.).*/\1$ST2_USERNAME/" st2chatops.env
-  sed -i.bak -r "s/^(export ST2_AUTH_PASSWORD.).*/\1$ST2_PASSWORD/" st2chatops.env
-  bin/hubot &> /tmp/hubot.log &
-  sleep 15
-  cat /tmp/hubot.log
-  grep -rq "INFO Connected to Slack RTM" /tmp/hubot.log && \
-  grep -rq "INFO [[:digit:]]\+ commands are loaded" /tmp/hubot.log
-  exit $?
-  ;;
-*)
-  [[ $# -gt 0 ]] && exec "$@"
-  ;;
-esac