diff --git a/terraform/key-vault-tfvars-secrets.tf b/terraform/key-vault-tfvars-secrets.tf
index 0b8a5a008..ad17c1c17 100644
--- a/terraform/key-vault-tfvars-secrets.tf
+++ b/terraform/key-vault-tfvars-secrets.tf
@@ -1,5 +1,5 @@
 module "azurerm_key_vault" {
-  source = "github.com/DFE-Digital/terraform-azurerm-key-vault-tfvars?ref=v0.3.0"
+  source = "github.com/DFE-Digital/terraform-azurerm-key-vault-tfvars?ref=v0.4.0"
 
   environment                           = local.environment
   project_name                          = local.project_name