frankenstein.gemspec in frankenstein-1.2.0 vs frankenstein.gemspec in frankenstein-2.0.0

@@ -25,24 +25,19 @@
 
   s.files = `git ls-files -z`.split("\0").reject { |f| f =~ /^(G|spec|Rakefile)/ }
 
   s.required_ruby_version = ">= 2.3.0"
 
-  # prometheus-client provides no guaranteed backwards compatibility,
-  # and in fact happily breaks things with no notice, so we're stuck
-  # with hard-coding a specific version to avoid unexpected disaster.
-  s.add_runtime_dependency "prometheus-client", "0.8.0"
+  s.add_runtime_dependency "prometheus-client", "~> 2.0"
   s.add_runtime_dependency "rack", "~> 2.0"
 
   s.add_development_dependency 'bundler'
   s.add_development_dependency 'github-release'
   s.add_development_dependency 'git-version-bump'
   s.add_development_dependency 'guard-rspec'
-  s.add_development_dependency 'guard-rubocop'
   s.add_development_dependency 'rack-test'
   s.add_development_dependency 'rake', "~> 12.0"
   s.add_development_dependency 'redcarpet'
   s.add_development_dependency 'rspec'
-  s.add_development_dependency 'rubocop'
   s.add_development_dependency 'simplecov'
   s.add_development_dependency 'yard'
 end