Where can I restore Pandoc's configuration

I have Pandoc 2.2.3.2 installed on my system via Anaconda. The Reveal.js slideshows I convert with it do not work, because the inserted links to the Reveal.js code seem to be wrong. The documentation states that the default URL should be 'https://unpkg.com/reveal.js@^4/'. However, in my generated slides they turn out as in for example <script src="reveal.js/js/reveal.js"></script>, so the base part of the URL seems to be missing.
Fixing the URL by setting the revealjs-url variable is unfortunately not enough, because the files seem to be located under 'dist' rather than the various prefixes 'js', 'css' that I find in my document now.
Where could this be configured in Pandoc? I have searched the documentation and grepped for possible configuration files on my hard drive, with no luck so far.