```ruby
cask :v1 => 'qtspim' do
  version :latest
  sha256 :no_check

  url 'http://sourceforge.net/projects/spimsimulator/files/latest/download'
  name 'QtSpim'
  homepage 'http://spimsimulator.sourceforge.net/'
  license :bsd

  app 'QtSpim.app'
end
```

Upgrade QtSpim to 9.1.15 and pkg file
user
```ruby
cask :v1 => 'qtspim' do
  version '9.1.15'
  sha256 'd637a6ac90ff5ef8c372219768a97dc55f1bde2d919fce97c371b18011d0f52a'

  url 'http://sourceforge.net/projects/spimsimulator/files/latest/download'
  name 'QtSpim'
  homepage 'http://spimsimulator.sourceforge.net/'
  license :bsd

  pkg 'QtSpim.mpkg'
  uninstall :pkgutil => 'org.larusstone.pkg.QtSpim'
end
```
assistant