diff --git a/.travis.yml b/.travis.yml
index f08d570..f6c1b66 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ gemfile:
   - gemfiles/5.0.gemfile
   - gemfiles/5.1.gemfile
   - gemfiles/5.2.gemfile
+  - gemfiles/6.0.gemfile
 rvm:
   - 2.3.8
   - 2.4.7
diff --git a/Appraisals b/Appraisals
index 4bb41b2..a3b8a3b 100644
--- a/Appraisals
+++ b/Appraisals
@@ -9,3 +9,7 @@ end
 appraise "5.2" do
   gem "rails", "5.2.rc2"
 end
+
+appraise "6.0" do
+  gem "rails", "~> 6.0.0"
+end
diff --git a/gemfiles/6.0.gemfile b/gemfiles/6.0.gemfile
new file mode 100644
index 0000000..ddccdc4
--- /dev/null
+++ b/gemfiles/6.0.gemfile
@@ -0,0 +1,22 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 6.0.0"
+
+group :development, :test do
+  gem "sqlite3", platform: :mri
+end
+
+group :development do
+  gem "onkcop", require: false
+end
+
+group :test do
+  gem "factory_bot_rails"
+  gem "rspec-rails"
+  gem "shoulda-matchers"
+end
+
+gemspec path: "../"
diff --git a/lib/approval/engine.rb b/lib/approval/engine.rb
index 04e8f57..03c9365 100644
--- a/lib/approval/engine.rb
+++ b/lib/approval/engine.rb
@@ -1,4 +1,5 @@
 require "rails"
+require "approval/mixins"
 
 module Approval
   class Engine < ::Rails::Engine
diff --git a/app/models/concerns/approval/mixins.rb b/lib/approval/mixins.rb
similarity index 100%
rename from app/models/concerns/approval/mixins.rb
rename to lib/approval/mixins.rb