The engine "yarn" is incompatible ... Expected version "1.16.0". Got "1.22.4"

[bmfay]

I am having trouble installing this add-on on my current projector despite using it successfully on other projects in the past. The error I get is

The engine "yarn" is incompatible with this module. Expected version "1.16.0". Got "1.22.4"

Which is confusing to me as I don't see any way an add-on would require a specific yarn version. I've looked at other examples of people encountering this issue with other add-ons and it seems to often actually be a node engine issue (but with this unhelpful error). As it stands though, I am using 6.9 which is compatible with the node engine's in this add-on's package.json.

Any ideas?