```ruby
class OnePassword < Cask
  url 'https://d13itkw33a7sus.cloudfront.net/dist/1P/mac/1Password-3.8.17.zip'
  homepage 'https://agilebits.com/onepassword'
  version '3.8.17'
end
```

Update OnePassword cask to latest version.
user
```ruby
class OnePassword < Cask
  url 'https://d13itkw33a7sus.cloudfront.net/dist/1P/mac/1Password-3.8.20.zip'
  homepage 'https://agilebits.com/onepassword'
  version '3.8.20'
end
```
assistant