diff --git a/it-windows-base/README.md b/it-windows-base/README.md
index 842a825..53e0f2c 100644
--- a/it-windows-base/README.md
+++ b/it-windows-base/README.md
@@ -34,7 +34,7 @@ module "it-windows-base" {
 
 | Name | Source | Version |
 |------|--------|---------|
-| <a name="module_ansible_servers"></a> [ansible\_servers](#module\_ansible\_servers) | git@github.e.it.census.gov:terraform-modules/dns-lookup.git | n/a |
+| <a name="module_ansible_servers"></a> [ansible\_servers](#module\_ansible\_servers) | git@github.e.it.census.gov:terraform-modules/dns-lookup.git | tf-upgrade |
 
 ## Resources
 
diff --git a/it-windows-base/hosts.tf b/it-windows-base/hosts.tf
index 482d470..6ee1534 100644
--- a/it-windows-base/hosts.tf
+++ b/it-windows-base/hosts.tf
@@ -1,5 +1,5 @@
 module "ansible_servers" {
-  source = "git@github.e.it.census.gov:terraform-modules/dns-lookup.git"
+  source = "git@github.e.it.census.gov:terraform-modules/dns-lookup.git?ref=tf-upgrade"
 
   hosts = [
     "app28.csvd.census.gov",