Gemfile in markerb-1.0.0 vs Gemfile in markerb-1.0.1

@@ -1,4 +1,4 @@
 source "http://rubygems.org"
 
-gem "rails", "3.0.7"
-gemspec
\ No newline at end of file
+gem "rails", "~> 3.0"
+gemspec