diff --git a/tf-modulised/vpc-subnets/vpc.tf b/tf-modulised/vpc-subnets/vpc.tf
index 3e8f89f..8a3e9c7 100644
--- a/tf-modulised/vpc-subnets/vpc.tf
+++ b/tf-modulised/vpc-subnets/vpc.tf
@@ -17,8 +17,8 @@ module "vpc" {
   name                 = "demo-vpc-${random_integer.suffix.result}"
   cidr                 = "172.16.0.0/16"
   azs                  = data.aws_availability_zones.available.names
-  private_subnets      = ["172.16.1.0/24", "172.16.2.0/24", "172.16.3.0/24"]
-  public_subnets       = ["172.16.4.0/24", "172.16.5.0/24", "172.16.6.0/24"]
+  private_subnets 	= cidrsubnets("172.16.18.0/23", 1, 1)
+  public_subnets 	= cidrsubnets("172.16.20.0/23", 1, 1)
   enable_nat_gateway   = true
   single_nat_gateway   = true
   enable_dns_hostnames = true
@@ -26,6 +26,9 @@ module "vpc" {
   tags = {
     "owner" = "KF"
     "terraform" = "initial-deployment-only"
+    "environment" = "demo"
+    "project" = "project1"
+    "application" = "network"
   }
 
 }