How to change the secretKey in Dexie-Encrypted?

I've been looking for an example about how to modify the secretKey of a IndexedDB that is protected by Dexie-Encrypted. So far I've read that if I wanna change the key, the version of the DB should be increase, but I can't really understand how to do it. I'm new with the Dexie, so if anyone can help me, I would apreciate it