What is the correct procedure for updating the timezone file for PDB$SEED?

MOS note 2794739.1 describes how to updated CDBs and PDBs, is not specific on how to update the PDB$SEED. The problem is any new PDB created uses the timezone of the PDB$SEED, which requires an update post creation of any new PDB in that particular container. We are looking for a supported procedure that allows us to update the PDB$SEED timezone so new PDBs do require that update. Is there one available?