diff --git a/infrastructure/terraform/components/acct/sns_topic_costs.tf b/infrastructure/terraform/components/acct/sns_topic_costs.tf
index 50b544d1c..e3ffa9010 100644
--- a/infrastructure/terraform/components/acct/sns_topic_costs.tf
+++ b/infrastructure/terraform/components/acct/sns_topic_costs.tf
@@ -1,6 +1,5 @@
 resource "aws_sns_topic" "costs" {
-  name              = "${local.csi}-costs"
-  kms_master_key_id = module.kms.key_id
+  name = "${local.csi}-costs"
 }
 
 resource "aws_sns_topic_policy" "costs" {