diff --git a/azure-functionapps.tf b/azure-functionapps.tf
index 01a8852..b59ce84 100644
--- a/azure-functionapps.tf
+++ b/azure-functionapps.tf
@@ -26,6 +26,8 @@ resource "azurerm_linux_function_app" "fa-hanyadikhet" {
     FUNCTIONS_WORKER_RUNTIME = "python"
   }
 
+  https_only = true
+
   site_config {
     application_stack {
       python_version = "3.9"