diff --git a/main.tf b/main.tf
index a669ed4..2b2db6a 100644
--- a/main.tf
+++ b/main.tf
@@ -54,7 +54,7 @@ module "subnets" {
 
 module "vpc_endpoints" {
   #count                  = var.enable_s3_endpoint ? 1 : 0
-  source                  = "git@github.com:webuildyourcloud/terraform-aws-vpc_endpoints.git"
+  source                  = "git@github.com:webuildyourcloud/terraform-aws-vpc_endpoints.git?ref=tags/0.0.1"
   #region                 = var.region
   #name                   = var.name
   vpc_id                  = module.vpc.vpc_id
@@ -64,7 +64,7 @@ module "vpc_endpoints" {
 }
 
 module "bastion" {
-  source         = "git@github.com:webuildyourcloud/terraform-aws-bastion.git"
+  source         = "git@github.com:webuildyourcloud/terraform-aws-bastion.git?ref=tags/0.0.1"
   enable_bastion = true
   environment    = var.stage
   project        = var.prefix
@@ -80,7 +80,7 @@ module "bastion" {
 }
 
 module "eks_cluster" {
-  source                = "git@github.com:webuildyourcloud/terraform-aws-eks-cluster.git"
+  source                = "git@github.com:webuildyourcloud/terraform-aws-eks-cluster.git?ref=tags/0.0.1"
   stage                 = var.stage
   name                  = var.name
   attributes            = var.attributes