Problems With User Password Reset

Hi,

I am trying to reset the user password by sending the following POST from Kibana UI Developer Console but I keep running into this error

Here is my POST

POST _security/user/username/_password 
{
"password": "newpasswordtoupdate"
}

Here is the ERROR

{
  "error": "no handler found for uri [/_security/user/username/_password?pretty] and method [POST]"
}

The URI path is the same that elasticsearch has in its official documentation
https://www.elastic.co/guide/en/elasticsearch/reference/current/security-api-change-password.html

Is there a different URI path for Password reset for Opendistro because the error shows a different handler could be the problem here?

Thanks