diff --git a/examples/simple_regional_with_ipv6/main.tf b/examples/simple_regional_with_ipv6/main.tf
index 51fa9b6106..04d51920b1 100644
--- a/examples/simple_regional_with_ipv6/main.tf
+++ b/examples/simple_regional_with_ipv6/main.tf
@@ -27,7 +27,9 @@ provider "kubernetes" {
 }
 
 module "gke" {
-  source                 = "terraform-google-modules/kubernetes-engine/google"
+  source  = "terraform-google-modules/kubernetes-engine/google"
+  version = "~> 33.0"
+
   project_id             = var.project_id
   name                   = "${local.cluster_type}-cluster${var.cluster_name_suffix}"
   regional               = true