(nvm maintainer here)
nvm alias default 6.11.5
if you want it pegged to that specific version.
You can also do nvm alias default 16
.
Either way, you’ll want to upgrade to the latest version of nvm
(v0.33.11 as of this writing)
$ nvm alias default 16.14.2
# nvm set default node.js version 16.14.2
$ node -v
# v16.14.2