diff --git a/contrib/terraform/upcloud/modules/kubernetes-cluster/main.tf b/contrib/terraform/upcloud/modules/kubernetes-cluster/main.tf
index 9639bdeae..54743a9e7 100644
--- a/contrib/terraform/upcloud/modules/kubernetes-cluster/main.tf
+++ b/contrib/terraform/upcloud/modules/kubernetes-cluster/main.tf
@@ -54,11 +54,12 @@ resource "upcloud_server" "master" {
     if machine.node_type == "master"
   }
 
-  hostname = "${local.resource-prefix}${each.key}"
-  plan     = each.value.plan
-  cpu      = each.value.plan == null ? each.value.cpu : null
-  mem      = each.value.plan == null ? each.value.mem : null
-  zone     = var.zone
+  hostname     = "${local.resource-prefix}${each.key}"
+  plan         = each.value.plan
+  cpu          = each.value.plan == null ? null : each.value.cpu
+  mem          = each.value.plan == null ? null : each.value.mem
+  zone         = var.zone
+  server_group = each.value.server_group == null ? null : upcloud_server_group.server_groups[each.value.server_group].id
 
   template {
     storage = var.template_name
@@ -111,11 +112,13 @@ resource "upcloud_server" "worker" {
     if machine.node_type == "worker"
   }
 
-  hostname = "${local.resource-prefix}${each.key}"
-  plan     = each.value.plan
-  cpu      = each.value.plan == null ? each.value.cpu : null
-  mem      = each.value.plan == null ? each.value.mem : null
-  zone     = var.zone
+  hostname     = "${local.resource-prefix}${each.key}"
+  plan         = each.value.plan
+  cpu          = each.value.plan == null ? null : each.value.cpu
+  mem          = each.value.plan == null ? null : each.value.mem
+  zone         = var.zone
+  server_group = each.value.server_group == null ? null : upcloud_server_group.server_groups[each.value.server_group].id
+
 
   template {
     storage = var.template_name
@@ -513,7 +516,17 @@ resource "upcloud_loadbalancer" "lb" {
   name              = "${local.resource-prefix}lb"
   plan              = var.loadbalancer_plan
   zone              = var.zone
-  network           = upcloud_network.private.id
+  networks {
+    name    = "Private-Net"
+    type    = "private"
+    family  = "IPv4"
+    network = upcloud_network.private.id
+  }
+  networks {
+    name   = "Public-Net"
+    type   = "public"
+    family = "IPv4"
+  }
 }
 
 resource "upcloud_loadbalancer_backend" "lb_backend" {
@@ -534,6 +547,9 @@ resource "upcloud_loadbalancer_frontend" "lb_frontend" {
   mode                 = "tcp"
   port                 = each.value.port
   default_backend_name = upcloud_loadbalancer_backend.lb_backend[each.key].name
+  networks {
+    name = "Public-Net"
+  }
 }
 
 resource "upcloud_loadbalancer_static_backend_member" "lb_backend_member" {
@@ -557,5 +573,9 @@ resource "upcloud_server_group" "server_groups" {
   title                = each.key
   anti_affinity_policy = each.value.anti_affinity_policy
   labels               = {}
-  members              = [for server in each.value.servers : merge(upcloud_server.master, upcloud_server.worker)[server].id]
+  # Managed upstream via upcloud_server resource
+  members              = []
+  lifecycle {
+    ignore_changes = [members]
+  }
 }
diff --git a/contrib/terraform/upcloud/modules/kubernetes-cluster/variables.tf b/contrib/terraform/upcloud/modules/kubernetes-cluster/variables.tf
index 87e5e5370..530409f09 100644
--- a/contrib/terraform/upcloud/modules/kubernetes-cluster/variables.tf
+++ b/contrib/terraform/upcloud/modules/kubernetes-cluster/variables.tf
@@ -20,6 +20,7 @@ variable "machines" {
     cpu       = string
     mem       = string
     disk_size = number
+    server_group : string
     additional_disks = map(object({
       size = number
       tier = string
@@ -104,6 +105,5 @@ variable "server_groups" {
 
   type = map(object({
     anti_affinity_policy = string
-    servers              = list(string)
   }))
 }
diff --git a/contrib/terraform/upcloud/modules/kubernetes-cluster/versions.tf b/contrib/terraform/upcloud/modules/kubernetes-cluster/versions.tf
index 3138453be..81a2d1b57 100644
--- a/contrib/terraform/upcloud/modules/kubernetes-cluster/versions.tf
+++ b/contrib/terraform/upcloud/modules/kubernetes-cluster/versions.tf
@@ -3,7 +3,7 @@ terraform {
   required_providers {
     upcloud = {
       source  = "UpCloudLtd/upcloud"
-      version = "~>2.12.0"
+      version = "~>5.6.0"
     }
   }
   required_version = ">= 0.13"
diff --git a/contrib/terraform/upcloud/variables.tf b/contrib/terraform/upcloud/variables.tf
index 9d8c90c17..58c626ab9 100644
--- a/contrib/terraform/upcloud/variables.tf
+++ b/contrib/terraform/upcloud/variables.tf
@@ -32,6 +32,7 @@ variable "machines" {
     cpu       = string
     mem       = string
     disk_size = number
+    server_group : string
     additional_disks = map(object({
       size = number
       tier = string
@@ -142,7 +143,6 @@ variable "server_groups" {
 
   type = map(object({
     anti_affinity_policy = string
-    servers              = list(string)
   }))
 
   default = {}
diff --git a/contrib/terraform/upcloud/versions.tf b/contrib/terraform/upcloud/versions.tf
index 3138453be..81a2d1b57 100644
--- a/contrib/terraform/upcloud/versions.tf
+++ b/contrib/terraform/upcloud/versions.tf
@@ -3,7 +3,7 @@ terraform {
   required_providers {
     upcloud = {
       source  = "UpCloudLtd/upcloud"
-      version = "~>2.12.0"
+      version = "~>5.6.0"
     }
   }
   required_version = ">= 0.13"