diff --git a/lambda-aurora-serverlessv2-postgresql/template.yaml b/lambda-aurora-serverlessv2-postgresql/template.yaml
index 79928ee06..aed423b0d 100644
--- a/lambda-aurora-serverlessv2-postgresql/template.yaml
+++ b/lambda-aurora-serverlessv2-postgresql/template.yaml
@@ -1,4 +1,5 @@
 AWSTemplateFormatVersion: 2010-09-09
+Transform: 'AWS::Serverless-2016-10-31'
 Description: >
   An AWS Lambda function and an Amazon Aurora PostgreSQL DB in an Aurora Serverless v2 DB cluster with RDS Data API and a Secrets Manager secret.
   (uksb-1tthgi812) (tag:lambda-aurora-serverlessv2-postgresql)