xirr.gemspec in xirr-0.2.2 vs xirr.gemspec in xirr-0.2.3

@@ -19,10 +19,10 @@
   spec.require_paths = ['lib']
 
   spec.add_development_dependency 'bundler', '~> 1.6'
   spec.add_development_dependency 'rake', '~> 10'
 
-  spec.required_ruby_version = '>=1.9'
+  spec.required_ruby_version = '>=2.0'
   spec.add_dependency 'activesupport', '~> 4.0'
   spec.add_development_dependency 'minitest', '~> 5.4'
   spec.add_development_dependency 'coveralls', '~> 0'
 
 end