brew install of v1.0.31 fails

[GeraldLoeffler]

[~] pwd
/Users/g.loeffler
[~] ls -l ~/.dw
ls: /Users/g.loeffler/.dw: No such file or directory

[~] brew tap mulesoft-labs/data-weave
[~] brew install dw
==> Fetching mulesoft-labs/data-weave/dw
==> Downloading https://github.com/mulesoft-labs/data-weave-cli/releases/download/v1.0.31/dw-1.0.31-macOS.zip.31-macOS
Already downloaded: /Users/g.loeffler/Library/Caches/Homebrew/downloads/c9132e9b47b31578f2f2596c69b379da3a954e13d63aa09209ab02ee211f366e--dw-1.0.31-macOS.zip.31-macOS
==> Installing dw from mulesoft-labs/data-weave
Error: An exception occurred within a child process:
  Errno::ENOENT: No such file or directory - bin
[~]