`yarn install` fails with node 10+

[brbcoding]

error css-ns@1.2.1: The engine "node" is incompatible with this module. Expected version ">=9.3.0 <10".

Current workaround uses nvm using node v 9. (nvm use 9)

[brbcoding]

yarn install fails with this error, however yarn install --ignore-engines passes as does npm install.

[brbcoding]

Opened this issue, it looks as though the latest (fixed) package.json wasn't pushed to npm.