Appropriate way for package to require seq for Emacs 24.5?

[William Rankin]

Hello,

I have a package that aims to maintain compatibility with Emacs 24.5 but
requires seq, so I have this in the header:

> Package-Requires: ((emacs "24.5") (seq "2.20"))

I only just saw in the seq commentary:

> While seq.el version 1.8 is in GNU ELPA for convenience, seq.el
> version 2.0 requires Emacs>=25.1.

Am I correct in interpreting this to mean the package requirements above
would not work on Emacs 24.5?

If so, would this work?

> Package-Requires: ((emacs "24.5") (seq "1.11"))

Thank you.