Error retrieving module

Can’t tell you how much I love runkit - so simple, so intuitive!

But I have encountered my first issue…
I’ve published an alpha version of a package to npm but for some reason runkit doesn’t seem to be able to find it.

My notebook looks like

const turf = require('turf@7.0.0-alpha.1')

and results in

Error: Cannot find module 'turf@7.0.0-alpha.1'
Should we have turf@7.0.0-alpha.1?

I’ve previously required specific versions of packages but alas this one fails…

Any ideas?