diff --git a/terraform/backend.tf b/terraform/backend.tf
index c6bc2b2..bc59834 100644
--- a/terraform/backend.tf
+++ b/terraform/backend.tf
@@ -4,6 +4,7 @@ terraform {
   # 1.12 to 1.16 unnoticed. The dflook plan/apply actions resolve this to the
   # latest matching release, so this line alone chooses the CI Terraform version.
   required_version = "~> 1.16.0"
+  # Locking config lives in terraform/prod.backend.tfvars (use_lockfile).
   backend "s3" {
   }
   required_providers {
diff --git a/terraform/prod.backend.tfvars b/terraform/prod.backend.tfvars
index a74f3c1..ac4b4b8 100644
--- a/terraform/prod.backend.tfvars
+++ b/terraform/prod.backend.tfvars
@@ -1,5 +1,5 @@
 bucket         = "hfla-incubator-terraform-state"
 key            = "incubator/terraform.tfstate"
 region         = "us-west-2"
-dynamodb_table = "hfla_incubator_terraform_table"
+use_lockfile   = true
 encrypt        = true
\ No newline at end of file