Rakefile in group_cache_key-0.2.0 vs Rakefile in group_cache_key-0.3.0

@@ -8,11 +8,11 @@
     gem.summary = %Q{adds a cache_key method to ActiveRecord arrays}
     gem.description = %Q{adds a cache_key method to ActiveRecord arrays}
     gem.email = "[e-mail]"
     gem.homepage = "http://github.com/saturnflyer/group_cache_key"
     gem.authors = ["Jim Gay"]
-    gem.add_dependency 'activerecord'
-    gem.add_dependency 'activesupport'
+    gem.add_dependency 'activerecord', '>=2.1.0'
+    gem.add_dependency 'activesupport', '>=2.1.0'
     # gem.add_development_dependency "thoughtbot-shoulda"
     # gem is a Gem::Specification... see http://www.rubygems.org/read/chapter/20 for additional settings
   end
 rescue LoadError
   puts "Jeweler (or a dependency) not available. Install it with: sudo gem install jeweler"