pkg.go.dev question regarding selection of "Latest" version

[Travis Keep]

I recently checked in a new version of github.com/keep94/birthday on 12 June.  pkg.go.dev sees this new version, yet pkg.go.dev insists that the "latest" version is the one I checked in on the 11 June.  

The version that I want to be the latest is: v0.0.0-20210612031622-805d2048defa but the version that is flagged the latest is  v0.0.0-20210611035119-6d0f2d7c943e.  Why is this?  What can I do to fix?

In the 12 June version, I removed 4 methods that were no longer needed due to previous refactorings that I had already done.  Is this why pkg.go.dev thinks that my most recent version isn't the "latest"?