Gemfile in pwned-1.0.0 vs Gemfile in pwned-1.1.0

@@ -2,5 +2,8 @@
 
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in pwned.gemspec
 gemspec
+
+# Allows to switch Rails version in the build matrix
+gem "activemodel", ENV["RAILS_VERSION"] ? "~> #{ENV["RAILS_VERSION"]}" : nil