sioc said: Hello, I pulled around a month ago a sheet that is not yet validated, since I found a fix to do and an improvement... How can I change the submit without losing the pull request ? I tried to read some support document on Internet and I don't see how to ... Thanks in advance for the help. You can submit new commits to your PR with your corrections. The latest "version" of your PR code(with commit) is what will be merged. You can also close your PR and submit a new one. As long as the PR is submitted before the next merge you're new code will get pulled. If you haven't been merged in over a month, you might want to check to see if there are any issues (AKA merge conflicts).