Grails 5.1.4 Health Actuator does not have database component

Question

my health endpoint does not show the database as component although my projects uses one.

I use this properties in application.yml:

    endpoints:
        enabled-by-default: true
    endpoint:
      health:
          show-details: always

and this is my json response for /acutator/health:

{
    "status": "UP",
    "components": {
        "diskSpace": {
            "status": "UP",
            "details": {
                "total": 502468108288,
                "free": 341547454464,
                "threshold": 10485760,
                "exists": true
            }
        },
        "ping": {
            "status": "UP"
        }
    }
}

Can anyone help me? Thanks in advance.