recent_ruby.gemspec in recent_ruby-0.1.1 vs recent_ruby.gemspec in recent_ruby-0.1.2

@@ -29,10 +29,10 @@
   end
   spec.bindir        = "bin"
   spec.executables   = "recent_ruby"
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", "~> 1.16"
+  spec.add_development_dependency "bundler", ">= 2.1.0"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency('rdoc')
   spec.add_development_dependency('pry')
   spec.add_development_dependency('aruba')
   spec.add_dependency('methadone', '~> 1.9.5')