diff --git a/.github/workflows/rails-integration-tests.yml b/.github/workflows/rails-integration-tests.yml
index 5ad2a67..e82468f 100644
--- a/.github/workflows/rails-integration-tests.yml
+++ b/.github/workflows/rails-integration-tests.yml
@@ -7,6 +7,33 @@ on:
       - v2
 
 jobs:
+  rails-5:
+    name: Rails 5 mailer previews
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      -
+        name: Build and cache
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          build-args: |
+            RAILS_VERSION=5.2.8.1
+            MAIL_NOTIFY_BRANCH=${{ github.ref }}
+          push: false
+          load: true
+          tags: mail-notify-integration-rails-5:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=min
+      -
+        name: Run integration tests
+        run: docker run --rm -e "NOTIFY_API_KEY=${{ secrets.NOTIFY_API_KEY }}" mail-notify-integration-rails-5:latest
   rails-6:
     name: Rails 6 mailer previews
     runs-on: ubuntu-latest
diff --git a/Dockerfile b/Dockerfile
index 3690834..6391a48 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,6 +27,9 @@ WORKDIR mail-notify-integration
 # install the gems into the bundle
 RUN bundle install
 
+# remove gems that will not work in Rails 5.2.8.1
+RUN if [ "${RAILS_VERSION}" = "5.2.8.1" ]; then bundle remove selenium-webdriver chromedriver-helper; fi
+
 # Final stage for app image
 FROM base
 
@@ -49,7 +52,9 @@ RUN echo "gem 'mail-notify', git: 'https://github.com/dxw/mail-notify', branch:
 RUN bundle install
 
 # Copy over intergration test files
-COPY test/ test/
+COPY test/mailers/ test/mailers/
+COPY test/system/ test/system/
+COPY test/application_system_test_case.rb /test/application_system_test_case.rb
 COPY test/app/mailers/ app/mailers/
 COPY test/app/views/ app/views/
 
diff --git a/test/application_system_test_case.rb b/test/application_system_test_case.rb
new file mode 100644
index 0000000..176c5d1
--- /dev/null
+++ b/test/application_system_test_case.rb
@@ -0,0 +1,4 @@
+require "test_helper"
+
+class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
+end