Appraisals in grape-0.13.0 vs Appraisals in grape-0.14.0

@@ -1,7 +1,12 @@
-appraise "rails-3" do
-  gem "rails", "3.2.19"
+appraise 'rails-3' do
+  gem 'rails', '3.2.19'
+  gem 'rack-cache', '<= 1.2'  # Pin as next rack-cache version (1.3) removes Ruby1.9 support
 end
 
-appraise "rails-4" do
-  gem "rails", "4.1.6"
+appraise 'rails-4' do
+  gem 'rails', '4.1.6'
+end
+
+appraise 'rack-1.5.2' do
+  gem 'rack', '1.5.2'
 end