I want to change the default shell of Terminator to zsh.
In /etc/passwd/ I've changed the default shell to /bin/zsh.
This settings changes the default shell in LXTerminal (the default terminal on Lubuntu), but not in Terminator. So I tried chsh -s /bin/zsh, but that doesn't work either.

The Terminator documentation says:

How do I change my default shell?

Terminator will always start the shell specified by the SHELL
environment variable. (It will fall back to /bin/sh if the SHELL
environment variable isn't set.) You could simply influence
Terminator's environment, but the best solution is to tell your
operating system which shell you'd like, and it will ensure that SHELL
is set correctly for all applications, not just Terminator. See the
documentation for your operating system for details on how to change
your default shell.

So I expected my attempts to work, but they don't. How can I change the default shell in Terminator.