Password forgotten

Hello.
In my Debian box, after entering this command to psql-16, psql -h localhost -U postgres

psql-16 asks for the password, which I have forgotten.
So I get this message:

psql: error: connection to server at "localhost" (::1), port 5432 failed: FATAL:  password authentication failed for user "postgres"
connection to server at "localhost" (::1), port 5432 failed: FATAL:  password authentication failed for user "postgres"

Is there a way I can retrieve this master password?

Thanks in advance.