Next-Auth.js - How to change the expected JWT alg?

Hello,

I’ve tried to set id_token_signed_response_alg and authorization_signed_response_alg to "ES256" in the client config option of the provider.

But when I try to signin I still get the error:
error: RPError: unexpected JWT alg received, expected RS256, got: ES256.
Even tho I changed it to ES256???.

What am I missing / doing wrong?
Thanks already -flojo