Rakefile in bio-gem-1.1.2 vs Rakefile in bio-gem-1.2.0

@@ -21,9 +21,10 @@
   gem.email = "[e-mail]"
   gem.authors = ["Raoul J.P. Bonnal"]
   # Include your dependencies below. Runtime dependencies are required when using your gem,
   # and development dependencies are only needed for development (ie running rake tasks, tests, etc)
   #gem.version='0.0.1'
+  gem.required_ruby_version = "~>1.9"
 end
 Jeweler::RubygemsDotOrgTasks.new
 
 require 'rake/testtask'
 Rake::TestTask.new(:test) do |test|