Encrypt querypassword

Hi

I have an implementation of mongo that is integrated with and LDAP, but security area is requesting us that the pasword in the config files gets encripted? or there are any other
practice that we can implement.

security:
  keyFile: /etc/mongodb-keyfile
  ldap:
    servers: ldaps.domain.com
    bind:
      method: simple
      queryUser: 'ldapUser'
      queryPassword: 'ldapPass'    <-- this is the one I need to encript
    transportSecurity: tls
    userToDNMapping: '[{...}]'

Thanks guys