```ruby
class Flowdock < Cask
  url 'https://d2ph5hv9wbwvla.cloudfront.net/mac/Flowdock_v1_1_0.zip'
  homepage 'https://www.flowdock.com/help/desktop'
  version '1.1.0'
  sha1 '62332957d869b813c9402d24e2bbaa79dece0bd0'
  link 'Flowdock.app'
end
```

Update Flowdock to use version 'latest' & no_checksum
user
```ruby
class Flowdock < Cask
  url 'https://flowdock-resources.s3.amazonaws.com/mac/Flowdock.zip'
  homepage 'https://www.flowdock.com/help/desktop'
  version 'latest'
  no_checksum
  link 'Flowdock.app'
end
```
assistant