diff --git a/down/offline_images b/down/offline_images
deleted file mode 100644
index d541c43..0000000
--- a/down/offline_images
+++ /dev/null
@@ -1,53 +0,0 @@
-###---[basic_images ]
-
-calico/node:v3.4.4
-calico/cni:v3.4.4
-calico/kube-controllers:v3.4.4
-
-coredns/coredns:1.5.0
-
-mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.10.1
-
-easzlab/flannel:v0.11.0-amd64
- 
-mirrorgooglecontainers/heapster-amd64:v1.5.4
-
-mirrorgooglecontainers/metrics-server-amd64:v0.3.3
- 
-mirrorgooglecontainers/pause-amd64:3.1
-
-traefik:v1.7.12
-
-###---[extra-images]
-# kube-dns
-mirrorgooglecontainers/k8s-dns-kube-dns-amd64:1.14.13
-mirrorgooglecontainers/k8s-dns-dnsmasq-nanny-amd64:1.14.13
-mirrorgooglecontainers/k8s-dns-sidecar-amd64:1.14.13
-# cilium 
-cilium/cilium:v1.4.4
-# kube-router 
-cloudnativelabs/kube-router:v0.3.1
-# heapster 
-mirrorgooglecontainers/heapster-grafana-amd64:v4.4.3
-mirrorgooglecontainers/heapster-amd64:v1.5.4
-mirrorgooglecontainers/heapster-influxdb-amd64:v1.5.2
-# helm tiller server 
-easzlab/tiller:v2.14.1
-# efk 
-easzlab/elasticsearch:v6.6.1
-easzlab/es-index-rotator:0.1.3
-alpine:3.6
-mirrorgooglecontainers/fluentd-elasticsearch:v2.4.0
-easzlab/kibana-oss:6.6.1
-# nfs dynamic PV provisioner
-jmgao1983/nfs-client-provisioner:latest
-# prometheus
-busybox:latest
-grafana/grafana:5.1.2
-mirrorgooglecontainers/kube-state-metrics:v1.3.1
-appropriate/curl:latest
-prom/prometheus:v2.2.1
-prom/alertmanager:v0.14.0
-prom/node-exporter:v0.15.2
-jimmidyson/configmap-reload:v0.1
-
diff --git a/manifests/metrics-server/metrics-server-deployment.yaml b/manifests/metrics-server/metrics-server-deployment.yaml
index 9c1241a..526b118 100644
--- a/manifests/metrics-server/metrics-server-deployment.yaml
+++ b/manifests/metrics-server/metrics-server-deployment.yaml
@@ -5,7 +5,7 @@ metadata:
   name: metrics-server
   namespace: kube-system
 ---
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: metrics-server
@@ -29,8 +29,8 @@ spec:
         emptyDir: {}
       containers:
       - name: metrics-server
-        #image: k8s.gcr.io/metrics-server-amd64:v0.3.3
-        image: mirrorgooglecontainers/metrics-server-amd64:v0.3.3
+        #image: k8s.gcr.io/metrics-server-amd64:v0.3.4
+        image: mirrorgooglecontainers/metrics-server-amd64:v0.3.4
         imagePullPolicy: IfNotPresent 
         command:
         - /metrics-server
diff --git a/roles/cluster-addon/defaults/main.yml b/roles/cluster-addon/defaults/main.yml
index 00338b0..e2c4c05 100644
--- a/roles/cluster-addon/defaults/main.yml
+++ b/roles/cluster-addon/defaults/main.yml
@@ -4,7 +4,7 @@ dns_backend: "coredns"
 # 设置 dns svc ip (这里选用 SERVICE_CIDR 中第2个IP)
 CLUSTER_DNS_SVC_IP: "{{ SERVICE_CIDR | ipaddr('net') | ipaddr(2) | ipaddr('address') }}"
 kubednsVer: "1.14.13"
-corednsVer: "1.5.0"
+corednsVer: "1.6.2"
 kubedns_offline: "kubedns_{{ kubednsVer }}.tar"
 coredns_offline: "coredns_{{ corednsVer }}.tar"
 dns_offline: "{%- if dns_backend == 'coredns' -%} \
@@ -15,7 +15,7 @@ dns_offline: "{%- if dns_backend == 'coredns' -%} \
 
 # metric server 自动安装
 metricsserver_install: "yes"
-metricsVer: "v0.3.3"
+metricsVer: "v0.3.4"
 metricsserver_offline: "metrics-server_{{ metricsVer }}.tar"
 
 # dashboard 自动安装
diff --git a/roles/cluster-addon/templates/coredns.yaml.j2 b/roles/cluster-addon/templates/coredns.yaml.j2
index 99739a7..a798356 100644
--- a/roles/cluster-addon/templates/coredns.yaml.j2
+++ b/roles/cluster-addon/templates/coredns.yaml.j2
@@ -67,7 +67,7 @@ data:
         loadbalance
     }
 ---
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1 
 kind: Deployment
 metadata:
   name: coredns
diff --git a/tools/easzup b/tools/easzup
index 8e13b3f..168b290 100755
--- a/tools/easzup
+++ b/tools/easzup
@@ -14,7 +14,7 @@ set -o errexit
 #set -o xtrace
 
 # default version, can be overridden by cmd line options
-export DOCKER_VER=18.09.8
+export DOCKER_VER=18.09.9
 export KUBEASZ_VER=2.0.3
 export K8S_BIN_VER=v1.15.2
 export EXT_BIN_VER=0.3.0
@@ -183,11 +183,11 @@ function get_sys_pkg() {
 function get_offline_image() {
   # images needed by k8s cluster
   calicoVer=v3.4.4
-  corednsVer=1.5.0
+  corednsVer=1.6.2
   dashboardVer=v1.10.1
   flannelVer=v0.11.0-amd64
   heapsterVer=v1.5.4
-  metricsVer=v0.3.3
+  metricsVer=v0.3.4
   pauseVer=3.1
   traefikVer=v1.7.12