diff --git a/.env b/.env
index 56f17e2..0ee78e0 100644
--- a/.env
+++ b/.env
@@ -1,5 +1,8 @@
 # don't forget to add the minus before the version
-# example: VERSION=-2.9.0-1
+# example: VERSION=-3.2.0-12
 IMAGE_REPO=zammad/zammad-docker-compose
 VERSION=
 RESTART=always
+POSTGRES_USER=zammad
+POSTGRES_PASS=zammad
+POSTGRES_DB=zammad_production
diff --git a/Dockerfile b/Dockerfile
index 822e3e0..7ea740b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,5 +9,5 @@ LABEL org.label-schema.build-date="$BUILD_DATE" \
       org.label-schema.vcs-url="https://github.com/zammad/zammad" \
       org.label-schema.vcs-type="Git" \
       org.label-schema.vendor="Zammad" \
-      org.label-schema.schema-version="2.9.0" \
+      org.label-schema.schema-version="3.2.0" \
       org.label-schema.docker.cmd="sysctl -w vm.max_map_count=262144;docker-compose up"
diff --git a/containers/zammad-elasticsearch/Dockerfile b/containers/zammad-elasticsearch/Dockerfile
index 0963e64..3321a17 100644
--- a/containers/zammad-elasticsearch/Dockerfile
+++ b/containers/zammad-elasticsearch/Dockerfile
@@ -10,7 +10,7 @@ LABEL org.label-schema.build-date="$BUILD_DATE" \
       org.label-schema.vcs-url="https://github.com/zammad/zammad" \
       org.label-schema.vcs-type="Git" \
       org.label-schema.vendor="Zammad" \
-      org.label-schema.schema-version="2.9.0" \
+      org.label-schema.schema-version="3.2.0" \
       org.label-schema.docker.cmd="sysctl -w vm.max_map_count=262144;docker-compose up"
 
 RUN yes | /usr/share/elasticsearch/bin/elasticsearch-plugin install ingest-attachment
diff --git a/containers/zammad-memcached/Dockerfile b/containers/zammad-memcached/Dockerfile
deleted file mode 100644
index 82bb04b..0000000
--- a/containers/zammad-memcached/Dockerfile
+++ /dev/null
@@ -1,23 +0,0 @@
-FROM memcached:alpine
-MAINTAINER Zanmmad <info@zammad.org>
-
-ENV MEMCACHED_SIZE 256M
-
-LABEL org.label-schema.build-date="$BUILD_DATE" \
-      org.label-schema.name="Zammad" \
-      org.label-schema.license="AGPL-3.0" \
-      org.label-schema.description="Docker container for Zammad - Memcached Container" \
-      org.label-schema.url="https://zammad.org" \
-      org.label-schema.vcs-url="https://github.com/zammad/zammad" \
-      org.label-schema.vcs-type="Git" \
-      org.label-schema.vendor="Zammad" \
-      org.label-schema.schema-version="2.9.0" \
-      org.label-schema.docker.cmd="sysctl -w vm.max_map_count=262144;docker-compose up"
-
-# docker init
-USER root
-COPY containers/zammad-memcached/docker-entrypoint.sh /
-RUN chmod +x /docker-entrypoint.sh
-USER memcache
-ENTRYPOINT ["/docker-entrypoint.sh"]
-CMD ["zammad-memcached"]
diff --git a/containers/zammad-memcached/docker-entrypoint.sh b/containers/zammad-memcached/docker-entrypoint.sh
deleted file mode 100644
index 4143a61..0000000
--- a/containers/zammad-memcached/docker-entrypoint.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh
-
-set -e
-
-if [ "$1" = 'zammad-memcached' ]; then
-  echo "starting memcached..."
-
-  exec memcached -m "${MEMCACHED_SIZE}"
-fi
diff --git a/containers/zammad-postgresql/Dockerfile b/containers/zammad-postgresql/Dockerfile
index aa47db6..d40260b 100644
--- a/containers/zammad-postgresql/Dockerfile
+++ b/containers/zammad-postgresql/Dockerfile
@@ -1,12 +1,8 @@
-FROM postgres:9.6-alpine
+FROM postgres:9.6.17-alpine
+
 MAINTAINER Zammad <info@zammad.org>
 ARG BUILD_DATE
 
-ENV BACKUP_SLEEP 86400
-ENV HOLD_DAYS 10
-ENV ZAMMAD_DIR /opt/zammad
-ENV BACKUP_DIR /var/tmp/zammad
-
 LABEL org.label-schema.build-date="$BUILD_DATE" \
       org.label-schema.name="Zammad" \
       org.label-schema.license="AGPL-3.0" \
@@ -15,7 +11,7 @@ LABEL org.label-schema.build-date="$BUILD_DATE" \
       org.label-schema.vcs-url="https://github.com/zammad/zammad" \
       org.label-schema.vcs-type="Git" \
       org.label-schema.vendor="Zammad" \
-      org.label-schema.schema-version="2.9.0" \
+      org.label-schema.schema-version="3.2.0" \
       org.label-schema.docker.cmd="sysctl -w vm.max_map_count=262144;docker-compose up"
 
 # copy backup script
diff --git a/containers/zammad-postgresql/backup.sh b/containers/zammad-postgresql/backup.sh
index 1908dd9..77793b5 100644
--- a/containers/zammad-postgresql/backup.sh
+++ b/containers/zammad-postgresql/backup.sh
@@ -2,9 +2,10 @@
 
 set -e
 
+: "${ZAMMAD_DIR:=/opt/zammad}"
+: "${BACKUP_DIR:=/var/tmp/zammad}"
 : "${ZAMMAD_RAILSSERVER_HOST:=zammad-railsserver}"
 : "${ZAMMAD_RAILSSERVER_PORT:=3000}"
-: "${POSTGRESQL_USER:=postgres}"
 : "${POSTGRESQL_HOST:=zammad-postgresql}"
 : "${POSTGRESQL_PORT:=5432}"
 : "${POSTGRESQL_DB:=zammad_production}"
@@ -32,7 +33,7 @@ function zammad_backup {
   fi
 
   #db backup
-  pg_dump --dbname=postgresql://"${POSTGRESQL_USER}"@"${POSTGRESQL_HOST}":"${POSTGRESQL_PORT}"/"${POSTGRESQL_DB}" | gzip > "${BACKUP_DIR}"/"${TIMESTAMP}"_zammad_db.psql.gz
+  pg_dump --dbname=postgresql://"${POSTGRESQL_USER}:${POSTGRESQL_PASSWORD}"@"${POSTGRESQL_HOST}":"${POSTGRESQL_PORT}"/"${POSTGRESQL_DB}" | gzip > "${BACKUP_DIR}"/"${TIMESTAMP}"_zammad_db.psql.gz
 }
 
 if [ "$1" = 'zammad-backup' ]; then
diff --git a/containers/zammad/Dockerfile b/containers/zammad/Dockerfile
index 64d1e7e..0403b77 100644
--- a/containers/zammad/Dockerfile
+++ b/containers/zammad/Dockerfile
@@ -37,7 +37,7 @@ LABEL org.label-schema.build-date="$BUILD_DATE" \
       org.label-schema.vcs-url="https://github.com/zammad/zammad" \
       org.label-schema.vcs-type="Git" \
       org.label-schema.vendor="Zammad" \
-      org.label-schema.schema-version="2.9.0" \
+      org.label-schema.schema-version="3.2.0" \
       org.label-schema.docker.cmd="sysctl -w vm.max_map_count=262144;docker-compose up"
 
 ENV GIT_BRANCH stable
diff --git a/containers/zammad/docker-entrypoint.sh b/containers/zammad/docker-entrypoint.sh
index f84cccc..f133f40 100755
--- a/containers/zammad/docker-entrypoint.sh
+++ b/containers/zammad/docker-entrypoint.sh
@@ -11,8 +11,8 @@ set -e
 : "${MEMCACHED_PORT:=11211}"
 : "${POSTGRESQL_HOST:=zammad-postgresql}"
 : "${POSTGRESQL_PORT:=5432}"
-: "${POSTGRESQL_USER:=postgres}"
-: "${POSTGRESQL_PASS:=}"
+: "${POSTGRESQL_USER:=zammad}"
+: "${POSTGRESQL_PASS:=zammad}"
 : "${POSTGRESQL_DB:=zammad_production}"
 : "${POSTGRESQL_DB_CREATE:=true}"
 : "${ZAMMAD_RAILSSERVER_HOST:=zammad-railsserver}"
diff --git a/docker-compose.yml b/docker-compose.yml
index 3a22961..8e7ef31 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -14,6 +14,11 @@ services:
     volumes:
       - zammad-backup:/var/tmp/zammad
       - zammad-data:/opt/zammad
+    environment:
+      - BACKUP_SLEEP=86400
+      - HOLD_DAYS=10
+      - POSTGRESQL_USER=${POSTGRES_USER}
+      - POSTGRESQL_PASSWORD=${POSTGRES_PASS}
 
   zammad-elasticsearch:
     image: ${IMAGE_REPO}:zammad-elasticsearch${VERSION}
@@ -36,8 +41,8 @@ services:
       - zammad-data:/opt/zammad
 
   zammad-memcached:
-    command: ["zammad-memcached"]
-    image: ${IMAGE_REPO}:zammad-memcached${VERSION}
+    command: memcached -m 256M
+    image: memcached:1.5.22-alpine
     restart: ${RESTART}
 
   zammad-nginx:
@@ -59,6 +64,9 @@ services:
     restart: ${RESTART}
     volumes:
       - postgresql-data:/var/lib/postgresql/data
+    environment:
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASS}
 
   zammad-railsserver:
     command: ["zammad-railsserver"]
diff --git a/hooks/config b/hooks/config
index 7c8b77c..b05ee3b 100644
--- a/hooks/config
+++ b/hooks/config
@@ -3,4 +3,4 @@
 # build hooks config
 #
 
-DOCKER_IMAGES="zammad zammad-elasticsearch zammad-memcached zammad-postgresql"
+DOCKER_IMAGES="zammad zammad-elasticsearch zammad-postgresql"