diff --git a/blog-assets/eks-cluster-prework/templates/eks-cluster-prework.template.yaml b/blog-assets/eks-cluster-prework/templates/eks-cluster-prework.template.yaml
index aaf15d0..58571d2 100644
--- a/blog-assets/eks-cluster-prework/templates/eks-cluster-prework.template.yaml
+++ b/blog-assets/eks-cluster-prework/templates/eks-cluster-prework.template.yaml
@@ -7,6 +7,15 @@ Parameters:
   JobName:
     Type: String
     Default: 'job-example'
+  AvailabilityZones:
+    Description: List of Availability Zones to use for the subnets in the VPC. Three
+      Availability Zones are used for this deployment.
+    Type: List<AWS::EC2::AvailabilityZone::Name>  AvailabilityZones:
+  NumberOfAZs:
+    Type: String
+    AllowedValues: ["2", "3"]
+    Default: "2"
+    Description: Number of Availability Zones to use in the VPC. This must match the value entered for the AvailabilityZones parameter.
   PreworkScriptBucket:
     Type: String
     Default: 'aws-quickstart'
@@ -24,7 +33,8 @@ Resources:
         QSS3KeyPrefix: quickstart-amazon-eks/
         # Cluster properties
         ProvisionBastionHost: Enabled
-        AccessCIDR: !Ref AccessCIDR
+        RemoteAccessCIDR: !Ref AccessCIDR
+        AvailabilityZones: !Join [ ',', !Ref 'AvailabilityZones' ]
         NodeInstanceType: t3.large
         NumberOfNodes: 1
         MaxNumberOfNodes: 1