diff --git a/bootstrap/README.md b/bootstrap/README.md
index 20f9022..d587566 100644
--- a/bootstrap/README.md
+++ b/bootstrap/README.md
@@ -68,7 +68,7 @@ Check the current default value of `kube_version` in cloned repository.
 
 ```sh
 cd kubespray
-ansible-playbook -i inventory/prod/inventory.ini -e kube_version=v1.16.9 -e upgrade_cluster_setup=true cluster.yml
+ansible-playbook -i inventory/prod/inventory.ini -e kube_version=v1.17.5 -e upgrade_cluster_setup=true cluster.yml
 ```
 
 History:
diff --git a/bootstrap/init.sh b/bootstrap/init.sh
index 7988672..293a23f 100755
--- a/bootstrap/init.sh
+++ b/bootstrap/init.sh
@@ -2,7 +2,7 @@
 echo "######################################################################################"
 echo "##  Reinit repository"
 rm -rf kubespray
-VERSION=${1:-release-2.12}
+VERSION=${1:-release-2.13}
 git clone --branch $VERSION https://github.com/kubernetes-sigs/kubespray.git
 
 echo "######################################################################################"
@@ -41,6 +41,7 @@ echo "##  Preparing real prod environment"
 cp -r kubespray/inventory/sample kubespray/inventory/prod
 rm kubespray/inventory/prod/inventory.ini
 cp ./prod.ini kubespray/inventory/prod/inventory.ini
-gsed -i "s/kube_network_plugin: .*/kube_network_plugin: flannel/" ./kubespray/inventory/prod/group_vars/k8s-cluster/k8s-cluster.yml
+#gsed -i "s/kube_network_plugin: .*/kube_network_plugin: flannel/" ./kubespray/inventory/prod/group_vars/k8s-cluster/k8s-cluster.yml
+gsed -i "s/# calico_iptables_backend: \"Legacy\"/calico_iptables_backend: \"NFT\"/" ./kubespray/inventory/prod/group_vars/k8s-cluster/k8s-net-calico.yml
 #echo 'calico_iptables_backend: "NFT"' >> ./kubespray/inventory/prod/group_vars/k8s-cluster/k8s-net-cluster.yml
 #gsed -i "s/metrics_server_enabled: .*/metrics_server_enabled: true/" ./kubespray/inventory/prod/group_vars/k8s-cluster/addons.yml