capistrano-sumo.gemspec in capistrano-sumo-1.4.0 vs capistrano-sumo.gemspec in capistrano-sumo-1.4.1

@@ -17,9 +17,9 @@
   spec.files = `git ls-files -z`.split("\x0").reject do |f|
     f.match(%r{^(test|spec|features)/})
   end
   spec.require_paths = ['lib']
 
-  spec.add_development_dependency 'bundler', '~> 1.15'
+  spec.add_development_dependency 'bundler', '~> 2.1.0'
   spec.add_development_dependency 'rake', '~> 12.0'
   spec.add_development_dependency 'rspec', '~> 3.6'
-end
\ No newline at end of file
+end