Python buildpacks updated to uv 0.7.20

Change effective on 10 July 2025

We have updated the package managers used during the build of Python apps as follows:

  • uv updated from 0.7.13 to 0.7.20 (changelog)

We recently added support for uv. If you have not used the package manager uv before, we highly recommend giving it a try - it supports lockfiles, is extremely fast, and is actively maintained by a full-time team! Learn more in our blog post Heroku Adds Support for uv.