ID Token won't change alg in Keycloak 17.0.1 client

Securing applications
,
1

I’ve setup a confidential client and under Fine Grain OpenID Connect Configuration I’ve setup RS256 for the ID Token alg. This is what I get:

{
  "alg": "HS256",
  "typ": "JWT",
  "kid": "0bb24edd-448f-43f9-8328-98dc797dec18"
}

What else should I configure to make it change?

Thanks