Heroku API Certificate Change

Issue

On March 8, 2023 at 17:00 UTC, Heroku will change the certificate for api.heroku.com from a DigiCert provided certificate to a Let's Encrypt provided certificate. This may affect your Heroku apps if they satisfy any of the following conditions:

  1. Pins custom ICA/Root certificates
  2. Hard-codes the acceptance of ICA/Root certificates
  3. Bundles their own trust store

If your app does any of the above, you'll likely have issues interacting with the Heroku API (api.heroku.com).

Resolution

We recommend performing the following actions before March 8, 2023:

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