diff --git a/node/terraform/modules/api/main.tf b/node/terraform/modules/api/main.tf
index f4a8a2a..e128bef 100644
--- a/node/terraform/modules/api/main.tf
+++ b/node/terraform/modules/api/main.tf
@@ -1,7 +1,3 @@
-terraform {
-  experiments = [module_variable_optional_attrs]
-}
-
 locals {
   domains = {
     http = trim("${var.custom_domain.http_subdomain}.${var.custom_domain.domain_name}", ".")
diff --git a/node/terraform/modules/http-api/main.tf b/node/terraform/modules/http-api/main.tf
index f49abc2..b3fcbca 100644
--- a/node/terraform/modules/http-api/main.tf
+++ b/node/terraform/modules/http-api/main.tf
@@ -6,7 +6,3 @@ locals {
     }
   ) }
 }
-
-terraform {
-  experiments = [module_variable_optional_attrs]
-}
diff --git a/node/terraform/modules/params/main.tf b/node/terraform/modules/params/main.tf
index 08b6c85..291a1a4 100644
--- a/node/terraform/modules/params/main.tf
+++ b/node/terraform/modules/params/main.tf
@@ -7,10 +7,6 @@ locals {
   }
 }
 
-terraform {
-  experiments = [module_variable_optional_attrs]
-}
-
 resource "aws_ssm_parameter" "param" {
   for_each = local.params
   name     = "${var.path_prefix}/${each.value.name}"