rails_50.gemfile in activeadmin-1.4.3

- old
+ new

@@ -1,9 +1,9 @@
 source "https://rubygems.org"
 
 eval_gemfile(File.expand_path(File.join("..", "Gemfile.common"), __dir__))
 
-gem "rails", "5.0.7"
+gem "rails", "~> 5.0.7"
 gem "devise", "~> 4.0"
 gem "draper", "~> 3.0"
 gem "activerecord-jdbcsqlite3-adapter", "~> 50.0", platforms: :jruby
 
 gemspec path: "../"