pin blankslate to 2.1.2.4 in .gemspec
pin blankslate to 2.1.2.4 in .gemspec

since Parslet 1.4.0 wants Blankslate ~> 2.0
and Blankslate 3.1.2 is out :-(

working around:

---8<---
Bundler could not find compatible versions for gem "blankslate":
  In Gemfile:
    ruote (>= 0) ruby depends on
      blankslate (~> 2.0) ruby

    ruote (>= 0) ruby depends on
      blankslate (3.1.2)
--->8---

:-(

jmettraux/ruote,jmettraux/ruote,ConsultingMD/ruote,ConsultingMD/ruote