Try 5.9.0
Try 5.9.0

https://github.com/jeremyevans/sequel/blob/master/CHANGELOG    === 5.9.0 (2018-06-01)
* Switch use of BigDecimal.new() to BigDecimal(), since the former is deprecated (jeremyevans)

Signed-off-by: Lincoln Baker <9097625024889eb4c0cbc9c268b49e14d04af1af@chef.io>

chef/knife-ec-backup,chef/knife-ec-backup