diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ed96ad8..536b3cd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,8 +11,9 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.6', '2.7']
-
+        ruby-version: ['2.5']
+        appraisal-version: ['rails-5', 'rails-6']
+      fail-fast: false
     services:
       postgres:
         image: postgis/postgis
@@ -35,15 +36,19 @@ jobs:
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby-version }}
-        bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+        bundler: 2
+        bundler-cache: false # runs 'bundle install' and caches installed gems automatically
 
     - name: Install GEOS
       run: sudo apt-get install libgeos-dev libgeos-3.8.0 libproj-dev -y
 
+    - name: Setup appraisal
+      run: |
+        bundle exec appraisal install
+
     - name: Run tests
       env:
         RAILS_ENV: test
         POSTGRES_USER: postgres
         POSTGRES_PASSWORD: postgres
-      run: bundle exec rake spec
-      continue-on-error: true
+      run: bundle exec appraisal ${{ matrix.appraisal-version }} rake spec
diff --git a/.gitignore b/.gitignore
index 64afe86..ec2b5c4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ test/dummy/.sass-cache
 *.gem
 .DS_Store
 Gemfile.lock
+*.gemfile.lock
diff --git a/Appraisals b/Appraisals
new file mode 100644
index 0000000..c5be844
--- /dev/null
+++ b/Appraisals
@@ -0,0 +1,7 @@
+appraise "rails-5" do
+  gem "rails", "~> 5", "< 6"
+end
+
+appraise "rails-6" do
+  gem "rails", "~> 6", "< 7"
+end
diff --git a/README.md b/README.md
index dd86d33..a1485e4 100644
--- a/README.md
+++ b/README.md
@@ -150,3 +150,19 @@ Feature.reset_column_information
 AbstractFeature.update_all(:type => 'Feature')
 Feature.refresh_aggregates
 ```
+
+## Testing
+
+Define Rails versions you'd like to test in the `Appraisals` file and then run `bundle exec appraisal install`
+
+Run tests against all your Rails versions:
+
+```bash
+bundle exec appraisal rake spec
+```
+
+Or just run specific versions:
+
+```bash
+bundle exec appraisal rails-5 rake
+```
diff --git a/gemfiles/rails_5.gemfile b/gemfiles/rails_5.gemfile
new file mode 100644
index 0000000..6da9af1
--- /dev/null
+++ b/gemfiles/rails_5.gemfile
@@ -0,0 +1,12 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rails", "~> 5", "< 6"
+
+group :test do
+  gem "pry"
+  gem "pry-byebug"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_6.gemfile b/gemfiles/rails_6.gemfile
new file mode 100644
index 0000000..c74304c
--- /dev/null
+++ b/gemfiles/rails_6.gemfile
@@ -0,0 +1,12 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rails", "~> 6", "< 7"
+
+group :test do
+  gem "pry"
+  gem "pry-byebug"
+end
+
+gemspec path: "../"
diff --git a/spatial_features.gemspec b/spatial_features.gemspec
index 6d15ef6..de13084 100644
--- a/spatial_features.gemspec
+++ b/spatial_features.gemspec
@@ -17,13 +17,14 @@ Gem::Specification.new do |s|
   s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]
   s.test_files = Dir["test/**/*"]
 
-  s.add_runtime_dependency "rails", '>= 4.2', '< 6.0'
+  s.add_runtime_dependency "rails", '>= 4.2', '< 7.0'
   s.add_runtime_dependency "delayed_job_active_record", '~> 4.1'
   s.add_runtime_dependency "rgeo-shapefile", '~> 3.0'
   s.add_runtime_dependency "rubyzip", '>= 1.0.0'
   s.add_runtime_dependency "nokogiri", '~> 1.6'
   s.add_runtime_dependency "chroma", "~> 0.1.0"
 
-  s.add_development_dependency "pg", '~> 0'
+  s.add_development_dependency "pg", '~> 1'
+  s.add_development_dependency "appraisal"
   s.add_development_dependency "rspec", '~> 3.5'
 end