diff --git a/gemfiles/activesupport5.0.gemfile b/gemfiles/activesupport5.0.gemfile
new file mode 100644
index 0000000..6a03d13
--- /dev/null
+++ b/gemfiles/activesupport5.0.gemfile
@@ -0,0 +1,15 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "activesupport", "~> 5.0.0"
+gem "actionpack", "~> 5.0.0"
+gem "listen", "<= 3.0.6", platforms: [:ruby_21, :jruby]
+
+group :development do
+  gem "pry"
+  gem "guard"
+  gem "guard-minitest"
+end
+
+gemspec :path => "../"