diff --git a/terraform/main.tf b/terraform/main.tf
index 9177b4c..3e45f8f 100644
--- a/terraform/main.tf
+++ b/terraform/main.tf
@@ -21,7 +21,7 @@ module "serverless-user" {
 // Set up custom domain name for easier fail-over.
 module "dns_for_failover" {
   source  = "silinternational/serverless-api-dns-for-failover/aws"
-  version = "0.4.0"
+  version = "~>0.5.1"
 
   api_name             = local.api_name
   cloudflare_zone_name = var.cloudflare_domain