diff --git a/main.tf b/main.tf
index 0293854..70dd324 100644
--- a/main.tf
+++ b/main.tf
@@ -293,7 +293,7 @@ module "postgresql" {
 
 module "sql_proxy_sa" {
   source        = "terraform-google-modules/service-accounts/google"
-  version       = "~> 4.4.0"
+  version       = "~> 4.5.3"
   count         = var.postgres_servers != null ? length(var.postgres_servers) != 0 ? 1 : 0 : 0
   project_id    = var.project
   prefix        = var.prefix