German language files could need a brush up

Hello there,

we’re using this very helpful plugin.

However, we saw and corrected some awkward German translations in the .po and .mo files with Poedit. But when the next update comes, those files will be overwritten again.

So how can I make sure my corrections in the language files will remain, and not be overwritten. We use a child theme.

Thanks for any helpful hints.
Best, Larry