diff --git a/main.tf b/main.tf
index 7a6d628..4d6d5c2 100644
--- a/main.tf
+++ b/main.tf
@@ -7,7 +7,7 @@ provider "kubernetes" {
   cluster_ca_certificate = base64decode(module.eks.cluster_certificate_authority_data)
 
   exec {
-    api_version = "client.authentication.k8s.io/v1beta1"
+    api_version = "client.authentication.k8s.io/v1beta"
     command     = "aws"
     # This requires the awscli to be installed locally where Terraform is executed
     args = ["eks", "get-token", "--cluster-name", module.eks.cluster_name]
@@ -126,7 +126,7 @@ module "eks" {
     instance_refresh = {
       strategy = "Rolling"
       preferences = {
-        min_healthy_percentage = 66
+        min_healthy_percentage = 80
       }
     }
   }