diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index f1a3a846..af8f5770 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -17,51 +17,37 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby_version: ["3.0", 2.7, 2.6, 2.5, 2.4, 2.3, jruby]
+        ruby_version: [3.1, "3.0", 2.7, 2.6, jruby]
         gemfile:
           [
             Gemfile,
-            gemfiles/Gemfile.rails-5.0.x,
-            gemfiles/Gemfile.rails-5.1.x,
             gemfiles/Gemfile.rails-5.2.x,
             gemfiles/Gemfile.rails-6.0.x,
             gemfiles/Gemfile.rails-6.1.x,
+            gemfiles/Gemfile.rails-7.0.x,
             gemfiles/Gemfile.rails-main,
           ]
         exclude:
+          # Ruby 3.1 is not supported by Rails 5.2.x
+          - ruby_version: 3.1
+            gemfile: gemfiles/Gemfile.rails-5.2.x
+
           # Ruby 3.x is not supported by Rails 5.2.x
           - ruby_version: 3.0
             gemfile: gemfiles/Gemfile.rails-5.2.x
-          # Ruby 3.x is not supported by Rails 5.1.x
-          - ruby_version: 3.0
-            gemfile: gemfiles/Gemfile.rails-5.1.x
-          # Ruby 3.x is not supported by Rails 5.0.x
-          - ruby_version: 3.0
-            gemfile: gemfiles/Gemfile.rails-5.0.x
+
           # Ruby 2.6.x is not supported by Rails main
           - ruby_version: 2.6
             gemfile: gemfiles/Gemfile.rails-main
-          # Ruby 2.5.x is not supported by Rails main
-          - ruby_version: 2.5
-            gemfile: gemfiles/Gemfile.rails-main
-          # Ruby 2.4.x is not supported by Rails main
-          - ruby_version: 2.4
-            gemfile: gemfiles/Gemfile.rails-main
-          # Ruby 2.4.x is not supported by Rails 6.1.x
-          - ruby_version: 2.4
-            gemfile: gemfiles/Gemfile.rails-6.1.x
-          # Ruby 2.4.x is not supported by Rails 6.0.x
-          - ruby_version: 2.4
-            gemfile: gemfiles/Gemfile.rails-6.0.x
-          # Ruby 2.3.x is not supported by Rails 6.1.x
-          - ruby_version: 2.3
-            gemfile: gemfiles/Gemfile.rails-6.1.x
-          # Ruby 2.3.x is not supported by Rails main
-          - ruby_version: 2.3
-            gemfile: gemfiles/Gemfile.rails-main
-          # Ruby 2.3.x is not supported by Rails 6.0.x
-          - ruby_version: 2.3
-            gemfile: gemfiles/Gemfile.rails-6.0.x
+
+          # Ruby 2.6.x is not supported by Rails 7.0.x
+          - ruby_version: 2.6
+            gemfile: gemfiles/Gemfile.rails-7.0.x
+
+          # JRuby is not supported by Rails 7.0.x
+          - ruby_version: jruby
+            gemfile: gemfiles/Gemfile.rails-7.0.x
+
           # JRuby is not supported by Rails main
           - ruby_version: jruby
             gemfile: gemfiles/Gemfile.rails-main
diff --git a/gemfiles/Gemfile.rails-7.0.x b/gemfiles/Gemfile.rails-7.0.x
new file mode 100644
index 00000000..90ffe74f
--- /dev/null
+++ b/gemfiles/Gemfile.rails-7.0.x
@@ -0,0 +1,13 @@
+source 'https://rubygems.org'
+
+gemspec :path => '..'
+
+gem 'activesupport', '~> 7.0'
+gem 'mocha', '~> 1.7.0'
+gem 'test_declarative', '0.0.6'
+gem 'rake'
+gem 'minitest', '~> 5.14'
+
+platforms :mri do
+  gem 'oj'
+end