diff --git a/config.default b/config.default
index 4ddac0b..6944add 100644
--- a/config.default
+++ b/config.default
@@ -41,9 +41,9 @@ BASE_TAG="7.0-node"
 # https://github.com/petervanderdoes/gitflow-avh/releases
 GIT_FLOW_VERSION='stable'
 # https://cloud.google.com/sdk/docs/quickstart-linux
-GOOGLE_SDK_VERSION='228.0.0'
+GOOGLE_SDK_VERSION='231.0.0'
 # https://github.com/kubernetes/helm/releases
-HELM_VERSION='2.12.0'
+HELM_VERSION='2.12.3'
 # https://www.terraform.io/downloads.html
 TERRAFORM_VERSION='0.11.10'
 # https://github.com/gruntwork-io/terragrunt/releases