certificate has expired

Trying to run `npm install` gives an error:
```
npm ERR! code CERT_HAS_EXPIRED
npm ERR! errno CERT_HAS_EXPIRED
npm ERR! request to https://registry.npm.taobao.org/yargs-parser/download/yargs-parser-13.1.1.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fyargs-parser%2Fdownload%2Fyargs-parser-13.1.1.tgz failed, reason: certificate has expired
```