diff --git a/as-apply-alarms/as-apply-alarms.sh b/as-apply-alarms/as-apply-alarms.sh
index b4518d5..0fe16d8 100755
--- a/as-apply-alarms/as-apply-alarms.sh
+++ b/as-apply-alarms/as-apply-alarms.sh
@@ -54,7 +54,7 @@ esac
 
 # region validator
 case $region in
-	us-east-1|us-west-2|us-west-1|eu-west-1|ap-southeast-1|ap-northeast-1|sa-east-1) ;;
+	us-east-1|us-west-2|us-west-1|eu-west-1|ap-southeast-1|ap-northeast-1|sa-east-1|ap-southeast-2) ;;
 	*) echo "The \"$region\" region does not exist. You must specify a valid region (example: -r us-east-1 or -r us-west-2)." 1>&2 ; exit 64;;
 esac
 
diff --git a/as-update-launch-config/as-update-launch-config.sh b/as-update-launch-config/as-update-launch-config.sh
index 357a90b..e1d3c43 100755
--- a/as-update-launch-config/as-update-launch-config.sh
+++ b/as-update-launch-config/as-update-launch-config.sh
@@ -99,7 +99,7 @@ esac
 
 # region validator
 case $region in
-	us-east-1|us-west-2|us-west-1|eu-west-1|ap-southeast-1|ap-northeast-1|sa-east-1) ;;
+	us-east-1|us-west-2|us-west-1|eu-west-1|ap-southeast-1|ap-northeast-1|sa-east-1|ap-southeast-2) ;;
 	*) echo "The \"$region\" region does not exist. You must specify a valid region (example: -r us-east-1 or -r us-west-2)." 1>&2 ; exit 64;;
 esac
 
diff --git a/aws-ha-release/aws-ha-release.sh b/aws-ha-release/aws-ha-release.sh
index d97421a..9e14929 100755
--- a/aws-ha-release/aws-ha-release.sh
+++ b/aws-ha-release/aws-ha-release.sh
@@ -67,7 +67,7 @@ fi
 
 #region validator
 case $region in
-	us-east-1|us-west-2|us-west-1|eu-west-1|ap-southeast-1|ap-northeast-1|sa-east-1) ;;
+	us-east-1|us-west-2|us-west-1|eu-west-1|ap-southeast-1|ap-northeast-1|sa-east-1|ap-southeast-2) ;;
 	*) echo "The \"$region\" region does not exist. You must specify a valid region (example: -r us-east-1 or -r us-west-2)." 1>&2 ; exit 64;;
 esac
 
diff --git a/rds-apply-alarms/rds-apply-alarms.sh b/rds-apply-alarms/rds-apply-alarms.sh
index 9367bd3..e8fa8e5 100755
--- a/rds-apply-alarms/rds-apply-alarms.sh
+++ b/rds-apply-alarms/rds-apply-alarms.sh
@@ -54,7 +54,7 @@ esac
 
 # region validator
 case $region in
-	us-east-1|us-west-2|us-west-1|eu-west-1|ap-southeast-1|ap-northeast-1|sa-east-1) ;;
+	us-east-1|us-west-2|us-west-1|eu-west-1|ap-southeast-1|ap-northeast-1|sa-east-1|ap-southeast-2) ;;
 	*) echo "The \"$region\" region does not exist. You must specify a valid region (example: -r us-east-1 or -r us-west-2)." 1>&2 ; exit 64;;
 esac