I'm unable to install node-sass.

It appears to be related to this error:

Downloading binary from https://github.com/sass/node-sass/releases/download/v3.13.1/linux-x64-72_binding.node
Cannot download "https://github.com/sass/node-sass/releases/download/v3.13.1/linux-x64-72_binding.node": 
HTTP error 404 Not Found

It doesn't appear to be able to find https://github.com/sass/node-sass/releases/download/v3.13.1/linux-x64-72_binding.node which is unsurprising, because the most recent version is actually https://github.com/sass/node-sass/releases/download/v4.13.1/linux-x64-72_binding.node

npm install [email protected] has the same error.