Hello,
The "new project from leiningen template" wizard uses the embedded leiningen at the moment. So for this particular feature, A new version of CCW, upgrading the leiningen embedded version, is required.
Note that for other features (repl start from leiningen, etc.), CCW can use the leiningen jar that can be specified in the Preferences (Clojure > General).
I intend to release a new version of CCW, with minor fixes (including this one), in late January.
Can you file an issue in github (laurentpetit/ccw) for this specific need of upgrading the embedded Leiningen?
Thanks,
-- Laurent