Update caniuse cli
caniuse-cmd (https://github.com/sgentle/caniuse-cmd) committed on Apr 28, 2017 last time. But try npm view caniuse-cmd and have a look. To update npm up caniuse-cmd.
Much more important is caniuse-db (https://www.npmjs.com/package/caniuse-db) updates regularly. Look for fulldata-json-commits at https://github.com/Fyrd/caniuse.
Check with npm view caniuse-db and update with npm up caniuse-db.