deprecation.gemspec in deprecation-0.2.2 vs deprecation.gemspec in deprecation-0.99.0

@@ -10,9 +10,11 @@
   s.summary = %q{Stand-alone deprecation library borrowed from ActiveSupport::Deprecation}
   s.description = %q{Stand-alone deprecation library borrowed from ActiveSupport::Deprecation}
   s.homepage = "http://github.com/cbeer/deprecation"
   s.license = "MIT"
 
+  s.required_ruby_version = '~> 2.1'
+
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   s.require_paths = ["lib"]