reCaptcha "not a robot" text in a different language

I’m using the reCaptcha integration on a site with all texts in Spanish. I’m trying to find a way to show the “I’m not a robot” text in Spanish.

Things I have tried/found:

  • reCaptcha docs say I should include hl in the URL of the script, but I don’t add this part (Netlify Forms does).
  • The rendered site loads a script recaptcha__en.js from The alternative recaptcha__es.js script seems to have the copy I’m looking for.
  • I’m using Jekyll and already tried changing the lang value in _config.yml. But does not have any effect.

Thanks in advance for any ideas in this topic.

Perhaps this section of the docs helps? I think you can customize only what is described here, not sure if that will work for language purposes: