diff --git a/terraform/instance/container_apps.tf b/terraform/instance/container_apps.tf
index c938a49..3bb9080 100644
--- a/terraform/instance/container_apps.tf
+++ b/terraform/instance/container_apps.tf
@@ -129,7 +129,11 @@ resource "azapi_update_resource" "container_app_api" {
     properties = {
       configuration = {
         ingress = {
-          additionalPortMappings = [18889]
+          additionalPortMappings = {
+            exposedPort: 18889,
+            targetPort: 18889,
+            external: false
+          }
         }
       }
     }