Cannot change the default password for the admin user

[baditaflorin]

I can login with the current superuser admin

/api/auth/signin
Request Method
POST
Status Code
200 OK

payload

{"email":"admin@tiledesk.com","password":"superadmin"}

when i try to change the password i get

Current password is invalid

/api/users/changepsw/
Request Method
PUT
Status Code
401 Unauthorized
Remote Address

{"oldpsw":"superadmin","newpsw":"NEWRANDOMPASS"}