[keycloak-user] How to update user attributes with each login, not just the first one?

Hi fellow keycloak users, It's been several months since I adopted keyclak as the SSO tool for my company, everything went smoothly with one little glitch. Currently we use a social login IdP as our main login method, we trust it unconditionally. But I find that custom user attributes from that IdP will not update in keycloak after the first login. And old users will not have these attributes at all. So I was wondering what can I do to make keycloak update user attributes on each and every login with the social IdP? Victor Z.