diff --git a/packages/aws-cdk/lib/api/bootstrap/bootstrap-template.yaml b/packages/aws-cdk/lib/api/bootstrap/bootstrap-template.yaml
index 321a5fdd76089..399562f08bade 100644
--- a/packages/aws-cdk/lib/api/bootstrap/bootstrap-template.yaml
+++ b/packages/aws-cdk/lib/api/bootstrap/bootstrap-template.yaml
@@ -618,7 +618,7 @@ Resources:
       Type: String
       Name:
         Fn::Sub: '/cdk-bootstrap/${Qualifier}/version'
-      Value: '18'
+      Value: '19'
 Outputs:
   BucketName:
     Description: The name of the S3 bucket owned by the CDK toolkit stack