diff --git a/samples/eks-cluster-prework/templates/eks-cluster-prework.template.yaml b/samples/eks-cluster-prework/templates/eks-cluster-prework.template.yaml
index e869ea2..9f116d1 100644
--- a/samples/eks-cluster-prework/templates/eks-cluster-prework.template.yaml
+++ b/samples/eks-cluster-prework/templates/eks-cluster-prework.template.yaml
@@ -17,7 +17,7 @@ Resources:
   EKSStack:
     Type: AWS::CloudFormation::Stack
     Properties:
-      TemplateURL: 'https://aws-quickstart.s3.amazonaws.com/quickstart-amazon-eks/templates/amazon-eks-entrypoint-new-vpc.template.yaml'
+      TemplateURL: 'https://aws-quickstart.s3.us-east-1.amazonaws.com/quickstart-amazon-eks/templates/amazon-eks-entrypoint-new-vpc.template.yaml'
       Parameters:
         # AWS Quick Start properties
         QSS3BucketName: aws-quickstart
@@ -31,7 +31,7 @@ Resources:
   PreworkStack:
     Type: AWS::CloudFormation::Stack
     Properties:
-      TemplateURL: 'https://aws-quickstart.s3.amazonaws.com/quickstart-examples/samples/eks-cluster-prework/templates/prework.template.yaml'
+      TemplateURL: 'https://aws-quickstart.s3.us-east-1.amazonaws.com/quickstart-examples/samples/eks-cluster-prework/templates/prework.template.yaml'
       Parameters:
         ClusterName: !Sub "EKSStack.Outputs.EKSClusterName"
         PreworkScriptBucket: "aws-quickstart"