0ra-01927 revoke from public

Does anybody have a work around for the error ORA-01927 cannot revoke privs you did not grant   ?

I am trying to revoke execute on DBMS_SQL, UTL_FILE, ...   from PUBLIC as the DISA STIG documents states to do.

revoke execute on UTL_FILE from public;

revoke execute on UTL_TCP from public;

revoke execute on UTL_SMTP from public;

revoke execute on UTL_HTTP from public;

revoke execute on DBMS_RANDOM from public;

revoke execute on DBMS_LOB from public;

revoke execute on DBMS_SQL from public;

revoke execute on DBMS_JOB from public;

--revoke execute on DBMS_BACKUP_RESTORE from public;