diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c2b3c1..5dcea2a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this
 project adheres to [Semantic Versioning](http://semver.org/).
 
+##2.1.3 (2022-04-06)
+### setting WORKER_IP_PRIVATE by default
 
 ## 2.1.2 (2021-07-07)
 ### Adding additional experimnets to module
diff --git a/variables.tf b/variables.tf
index e48312f..b3d70cd 100644
--- a/variables.tf
+++ b/variables.tf
@@ -90,7 +90,7 @@ variable "machine_type" {
 variable "ip_configuration" {
   type        = string
   description = "The configuration for VM IPs. Options are 'WORKER_IP_PUBLIC' or 'WORKER_IP_PRIVATE'."
-  default     = null
+  default     = "WORKER_IP_PRIVATE"
 }
 
 variable "kms_key_name" {