[keycloak-user] How to upgrade server keycloak-overlay

ave wildfly version 10 and server keycloak-overlay version 1.9.7. I want to upgrade server keycloak-overlay to 2.5.4 version. As I understand, instruction http://www.keycloak.org/docs/2.5/server_admin_guide/topics/MigrationFromO... for upgrade standalone server. Where I can found instruction for update server keycloak-overlay?