diff --git a/examples/gke/gke_cluster_autoscaler_policies/gke.tf b/examples/gke/gke_cluster_autoscaler_policies/gke.tf
index 114b78ad..203251f9 100644
--- a/examples/gke/gke_cluster_autoscaler_policies/gke.tf
+++ b/examples/gke/gke_cluster_autoscaler_policies/gke.tf
@@ -2,7 +2,7 @@
 
 module "gke" {
   source                     = "terraform-google-modules/kubernetes-engine/google"
-  version                    = "24.1.0"
+  version                    = "33.1.0"
   project_id                 = var.project_id
   name                       = var.cluster_name
   region                     = var.cluster_region
diff --git a/examples/gke/gke_cluster_autoscaler_policies/variables.tf b/examples/gke/gke_cluster_autoscaler_policies/variables.tf
index a0e8b490..3277220e 100644
--- a/examples/gke/gke_cluster_autoscaler_policies/variables.tf
+++ b/examples/gke/gke_cluster_autoscaler_policies/variables.tf
@@ -12,6 +12,7 @@ variable "cluster_region" {
 variable "cluster_zones" {
   type        = list(string)
   description = "The zones to create the cluster."
+  default     = []
 }
 
 variable "project_id" {
diff --git a/examples/gke/gke_cluster_autoscaler_policies/vpc.tf b/examples/gke/gke_cluster_autoscaler_policies/vpc.tf
index e1f44996..2f573e1f 100644
--- a/examples/gke/gke_cluster_autoscaler_policies/vpc.tf
+++ b/examples/gke/gke_cluster_autoscaler_policies/vpc.tf
@@ -8,7 +8,7 @@ locals {
 
 module "vpc" {
   source       = "terraform-google-modules/network/google"
-  version      = "6.0.0"
+  version      = "9.3.0"
   project_id   = var.project_id
   network_name = var.cluster_name
   subnets = [