```ruby
class Keepassx2 < Cask
  url 'http://www.keepassx.org/dev/attachments/download/38/KeePassX-2.0-alpha4.dmg'
  homepage 'http://www.keepassx.org/'
  version '2.0.0-alpha4'
  sha1 'c289e9536eb9348f24875d8b2b59df8ecac35a04'
  link 'KeePassX.app'
end
```

Update KeePassX version to 2.0.0-alpha5.
user
```ruby
class Keepassx2 < Cask
  url 'http://www.keepassx.org/dev/attachments/download/59/KeePassX-2.0-alpha5.dmg'
  homepage 'http://www.keepassx.org/'
  version '2.0.0-alpha5'
  sha1 '0d2a32e1f03ee30b70e99f7ea344eafe63c463d0'
  link 'KeePassX.app'
end
```
assistant