```ruby
class FontCode2000 < Cask
  url 'http://ftp.freebsd.org/pub/FreeBSD/ports/local-distfiles/thierry/code2000-1.171/CODE2000.ZIP'
  homepage 'http://ftp.freebsd.org/pub/FreeBSD/ports/local-distfiles/thierry/code2000-1.171/'
  version '1.171'
  sha1 '4f9727ba2a9ad6a8c8e77bb0a9e2a2fe6d50f04f'
  font 'CODE2000.TTF'
end
```

Update Code2000 to sha256 checksums
user
```ruby
class FontCode2000 < Cask
  url 'http://ftp.freebsd.org/pub/FreeBSD/ports/local-distfiles/thierry/code2000-1.171/CODE2000.ZIP'
  homepage 'http://ftp.freebsd.org/pub/FreeBSD/ports/local-distfiles/thierry/code2000-1.171/'
  version '1.171'
  sha256 'af00db49179aaea66494a6b9cad3ae7f2b822bf650df3133c07f9c3209cbc8e2'
  font 'CODE2000.TTF'
end
```
assistant