diff --git a/bootstrap/init.sh b/bootstrap/init.sh
index 13829bf..3c4d901 100755
--- a/bootstrap/init.sh
+++ b/bootstrap/init.sh
@@ -6,7 +6,7 @@
 echo "######################################################################################"
 echo "##  Reinit repository"
 rm -rf kubespray
-VERSION=${1:-release-2.15}
+VERSION=${1:-release-2.17}
 git clone --branch $VERSION https://github.com/kubernetes-sigs/kubespray.git
 
 echo "######################################################################################"
diff --git a/bootstrap/inventory/prod/group_vars/k8s-cluster/k8s-cluster.yml b/bootstrap/inventory/prod/group_vars/k8s-cluster/k8s-cluster.yml
index 716060b..fd12e2e 100644
--- a/bootstrap/inventory/prod/group_vars/k8s-cluster/k8s-cluster.yml
+++ b/bootstrap/inventory/prod/group_vars/k8s-cluster/k8s-cluster.yml
@@ -27,7 +27,7 @@ kube_users_dir: "{{ kube_config_dir }}/users"
 kube_api_anonymous_auth: true
 
 ## Change this to use another Kubernetes version, e.g. a current beta release
-kube_version: v1.19.10
+kube_version: v1.20.7
 
 # kubernetes image repo define
 kube_image_repo: "k8s.gcr.io"
diff --git a/k8s/mailu/mailu.secret.yml b/k8s/mailu/mailu.secret.yml
index 15c333c..50abd55 100644
--- a/k8s/mailu/mailu.secret.yml
+++ b/k8s/mailu/mailu.secret.yml
@@ -65,8 +65,8 @@ rspamd:
       memory: 10Mi
       cpu: 10m
     limits:
-      memory: 200Mi
-      cpu: 200m
+      memory: 2000Mi
+      cpu: 600m
 certmanager:
   issuerType: ClusterIssuer
   issuerName: "letsencrypt-prod"