Alternative to Updating sns subscriptions using cloudformation

The cloudformation stack with sns has been created with one subscription. In another ansible task want to update another subscription, but this is not possible as subscription in sns cannot be updated.

Using ansible to perform cloudformation. What are the alternatives.

1. club aws-cli with ansible and then execute plays which contain aws-cli content.

2.create a custom module in ansible using boto. But this would be difficult as I should store sns arn's and give those to the custom module.

So what are the other alternatives??