@aria42 You need Lein 2.8.3 or newer to use the modern nREPL.
Older versions have tools.nrepl
as a hardcoded and non-overridable dep.
> Is this due to lein’s dependency on that? I believe I should be overriding, but because the package is different, not sure if I’m actually overriding.
Generally you can’t override different artifacts. 🙂