Instagram’s New Feature: Replace Audio on Old Posts

A small but genuinely useful update from Instagram: you can now replace the audio on a post or carousel after it’s been published. Previously, if a track became unavailable (music labels have pulled tracks from Meta before), your video simply lost its audio for good.

To do it, tap the post, open the menu in the top right, scroll to edit, and swap the audio. This is particularly handy for partnership posts: if a creator’s content uses audio that isn’t cleared for commercial use, you can now ask them to swap it before boosting the post as an ad.

Watch the short video below, taken from our August 2026 social media marketing update, to see it in action.