diff --git a/tf/modules/postgresql/variables.tf b/tf/modules/postgresql/variables.tf
index f72b62bd..279e39c3 100644
--- a/tf/modules/postgresql/variables.tf
+++ b/tf/modules/postgresql/variables.tf
@@ -48,7 +48,7 @@ variable "db_max_allocated_storage" {
 }
 
 variable "db_engine_version" {
-  default = "16.1"
+  default = "16.3"
 }
 
 variable "db_parameter_group" {