cannot import version 3.4.0

[f18m]

If I run:

go get github.com/davidbanham/human_duration@v3.4.0

I get:

go: github.com/davidbanham/human_duration@v3.4.0: invalid version: go.mod has post-v3 module path "github.com/davidbanham/human_duration/v3" at revision v3.4.0