Spotify Linux Repo Key Not Available Debian/Ubuntu

I had the following issue when running sudo apt update to update my repositories in Debian Stretch

This is due to the fact that spotify signing keys expire over time. In order to fix run the following command:

Notice option 1 is not showing as expired so simply selecting ‘1’ when prompted imported the latest key.

Run the following if using Ubuntu (wasn’t needed in Debian) to activate the signing key:

Following this sudo apt update ran fine without errors ensuring I’m always running the latest version of Spotify ‘testing’ from the repo. Hope this helps someone else with the same issue.