Property "Lock" in composer.json

[Giancarlo Di Massa]

Monolog version 1

While validating via PHPStorm the composer.json of my own code to be published on Packagist, it has descended to requirements as casually I didn't check out that box, and it is complaining about monolog

composer validate --no-interaction --ansi --verbose --no-check-all --with-dependencies

monolog/monolog is valid for simple usage with Composer but has
 strict errors that make it unable to be published as a package
 # Publish errors
 - The property lock is not defined and the definition does not allow additional properties

monolog/monolog's "lock": false last row seems to be the culprit. I didn't find that property on the composer documentation.