I have received an email from Amazon headed:
[ACTION REQUIRED] - Update your S3 object access to maintain connectivity
We have identified TLS 1.0 or TLS 1.1 connections to Amazon Simple Storage Service (Amazon S3) objects hosted in your account, which must be immediately updated for these connections to maintain their access to your S3 objects. Please update your client software as soon as possible to use TLS 1.2 or higher to avoid an availability impact.
How do I fix this?