causes/haml-lint — pull request #5 by lathiat (2014-01-30 03:03:06+00:00)
Title: haml dependency seems overly specific at 4.0.3, made >= 4.0

Unable to install alongside html2haml because of different specific version requirements.

Doesn't seem 4.0.3 has any change that matters, so >= 4.0 should be good.. >= 4.0.3 would suffice if a known bug was fixed in 4.0.3