diff --git a/terraform/key-vault-tfvars-secrets.tf b/terraform/key-vault-tfvars-secrets.tf
index ad17c1c17..702267ff1 100644
--- a/terraform/key-vault-tfvars-secrets.tf
+++ b/terraform/key-vault-tfvars-secrets.tf
@@ -1,14 +1,14 @@
 module "azurerm_key_vault" {
   source = "github.com/DFE-Digital/terraform-azurerm-key-vault-tfvars?ref=v0.4.0"
 
-  environment                           = local.environment
-  project_name                          = local.project_name
-  existing_resource_group               = module.azure_container_apps_hosting.azurerm_resource_group_default.name
-  azure_location                        = local.azure_location
-  key_vault_access_users                = local.key_vault_access_users
-  key_vault_access_ipv4                 = local.key_vault_access_ipv4
-  tfvars_filename                       = local.tfvars_filename
-  diagnostic_log_analytics_workspace_id = module.azure_container_apps_hosting.azurerm_log_analytics_workspace_container_app.id
-  diagnostic_eventhub_name              = local.enable_event_hub ? module.azure_container_apps_hosting.azurerm_eventhub_container_app.name : ""
-  tags                                  = local.tags
+  environment                             = local.environment
+  project_name                            = local.project_name
+  existing_resource_group                 = module.azure_container_apps_hosting.azurerm_resource_group_default.name
+  azure_location                          = local.azure_location
+  key_vault_access_use_rbac_authorization = true
+  key_vault_access_ipv4                   = local.key_vault_access_ipv4
+  tfvars_filename                         = local.tfvars_filename
+  diagnostic_log_analytics_workspace_id   = module.azure_container_apps_hosting.azurerm_log_analytics_workspace_container_app.id
+  diagnostic_eventhub_name                = local.enable_event_hub ? module.azure_container_apps_hosting.azurerm_eventhub_container_app.name : ""
+  tags                                    = local.tags
 }
diff --git a/terraform/locals.tf b/terraform/locals.tf
index f4a26a5ec..5dc755355 100644
--- a/terraform/locals.tf
+++ b/terraform/locals.tf
@@ -30,7 +30,6 @@ locals {
   cdn_frontdoor_custom_domains                 = var.cdn_frontdoor_custom_domains
   cdn_frontdoor_host_redirects                 = var.cdn_frontdoor_host_redirects
   cdn_frontdoor_health_probe_protocol          = var.cdn_frontdoor_health_probe_protocol
-  key_vault_access_users                       = toset(var.key_vault_access_users)
   key_vault_access_ipv4                        = var.key_vault_access_ipv4
   tfvars_filename                              = var.tfvars_filename
   enable_monitoring                            = var.enable_monitoring
diff --git a/terraform/variables.tf b/terraform/variables.tf
index 832957caa..6a8a04c79 100644
--- a/terraform/variables.tf
+++ b/terraform/variables.tf
@@ -3,11 +3,6 @@ variable "environment" {
   type        = string
 }
 
-variable "key_vault_access_users" {
-  description = "List of users that require access to the Key Vault where tfvars are stored. This should be a list of User Principle Names (Found in Active Directory) that need to run terraform"
-  type        = list(string)
-}
-
 variable "key_vault_access_ipv4" {
   description = "List of IPv4 Addresses that are permitted to access the Key Vault"
   type        = list(string)