diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 20458ed..9516bda 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby: ['2.7', '3.0', '3.1', '3.2']
+        ruby: ['2.7', '3.0', '3.1', '3.2', '3.3']
       fail-fast: false
 
     steps:
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 82c57fe..2d242e9 100755
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -17,7 +17,11 @@ module ActiveSupport
   class TestCase
     include ActiveRecord::TestFixtures
 
-    self.fixture_path = "#{File.dirname __FILE__}/fixtures/"
+    if respond_to? :fixture_paths=
+      fixture_paths << "#{File.dirname __FILE__}/fixtures/"
+    else
+      self.fixture_path = "#{File.dirname __FILE__}/fixtures/"
+    end
 
     self.use_transactional_tests = true
     self.use_instantiated_fixtures = false