diff --git a/packages/aws-cdk-lib/aws-ecs-patterns/test/ec2/l3s.test.ts b/packages/aws-cdk-lib/aws-ecs-patterns/test/ec2/l3s.test.ts
index 5ab7ece925918..d4d8064981ac0 100644
--- a/packages/aws-cdk-lib/aws-ecs-patterns/test/ec2/l3s.test.ts
+++ b/packages/aws-cdk-lib/aws-ecs-patterns/test/ec2/l3s.test.ts
@@ -40,7 +40,7 @@ describe('ApplicationLoadBalancedEc2Service', () => {
         command: ['/bin/bash'],
       },
       desiredCount: 2,
-      ipAddressType: IpAddressType.IPV4,
+      ipAddressType: IpAddressType.DUAL_STACK,
     });
 
     // THEN - stack contains a load balancer and a service