diff --git a/infrastructure/stacks/artefact_management/kms.tf b/infrastructure/stacks/artefact_management/kms.tf
index 1edcd3a9..9e2cee01 100644
--- a/infrastructure/stacks/artefact_management/kms.tf
+++ b/infrastructure/stacks/artefact_management/kms.tf
@@ -12,7 +12,8 @@ module "s3_artefacts_encryption_key" {
       Principal = {
         AWS = [
           "arn:aws:iam::${var.dev_account_id}:root",
-          "arn:aws:iam::${var.test_account_id}:root"
+          "arn:aws:iam::${var.test_account_id}:root",
+          "arn:aws:iam::${var.prod_account_id}:root"
         ]
       }
       Action = [