Make NPM peer dependency with chartjs ^4.0.0 valid

I have chartjs v4 installed but npm warn me about missing peer dependency because of this plugin:
`npm WARN chartjs-plugin-datalabels@2.0.0 requires a peer of chart.js@^3.0.0 but none is installed. You must install peer dependencies yourself.`
[Chartjs awesome](https://github.com/chartjs/awesome) clearly state that it is compatible with chartjs 4 and the plugin works with this version.
There should be something wrong with the package configuration of this plugin.
Is it easily fixable?