diff --git a/containers/zammad/docker-entrypoint.sh b/containers/zammad/docker-entrypoint.sh
index 2c0e850..6ca1db0 100755
--- a/containers/zammad/docker-entrypoint.sh
+++ b/containers/zammad/docker-entrypoint.sh
@@ -27,6 +27,8 @@ set -e
 : "${ZAMMAD_RAILSSERVER_PORT:=3000}"
 : "${ZAMMAD_WEBSOCKET_HOST:=zammad-websocket}"
 : "${ZAMMAD_WEBSOCKET_PORT:=6042}"
+: "${ZAMMAD_WEB_CONCURRENCY:=0}"
+: "${ZAMMAD_SESSION_JOBS_CONCURRENT:=}"
 
 function check_zammad_ready {
   sleep 15
@@ -138,14 +140,18 @@ fi
 if [ "$1" = 'zammad-railsserver' ]; then
   test -f /opt/zammad/tmp/pids/server.pid && rm /opt/zammad/tmp/pids/server.pid
 
+  if (( ZAMMAD_WEB_CONCURRENCY > 1 )); then
+    PUMA_OPTS=" -w $ZAMMAD_WEB_CONCURRENCY"
+  fi
+
   check_zammad_ready
 
   cd "${ZAMMAD_DIR}"
 
-  echo "starting railsserver..."
+  echo "starting railsserver... with WEB_CONCURRENCY=${ZAMMAD_WEB_CONCURRENCY}"
 
   #shellcheck disable=SC2101
-  exec bundle exec rails server puma -b [::] -p "${ZAMMAD_RAILSSERVER_PORT}" -e "${RAILS_ENV}"
+  exec bundle exec rails server puma -b [::] -p "${ZAMMAD_RAILSSERVER_PORT}" -e "${RAILS_ENV}" "${PUMA_OPTS}"
 fi