diff --git a/Gemfile b/Gemfile
index 2535d020..68020b83 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,6 +13,9 @@ platforms :ruby do
 
   if version.start_with?('4.2', '5.0')
     gem 'sqlite3', '~> 1.3.13'
+  elsif version.start_with?('8.')
+    # Rails 8.0+ requires sqlite3 >= 2.1
+    gem 'sqlite3', '>= 2.1'
   else
     gem 'sqlite3', '~> 1.4'
   end
diff --git a/test/test_db-shm b/test/test_db-shm
index dc97595b..42eee55d 100644
Binary files a/test/test_db-shm and b/test/test_db-shm differ
diff --git a/test/test_db-wal b/test/test_db-wal
index 9b212c7b..d750fe47 100644
Binary files a/test/test_db-wal and b/test/test_db-wal differ
diff --git a/test/test_helper.rb b/test/test_helper.rb
index f9c893e2..27153c67 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -61,7 +61,8 @@ class TestApp < Rails::Application
   config.action_controller.action_on_unpermitted_parameters = :raise
 
   ActiveRecord::Schema.verbose = false
-  config.active_record.schema_format = :none
+  # Rails 8.0+ removed :none as a valid schema_format option
+  config.active_record.schema_format = Rails::VERSION::MAJOR >= 8 ? :ruby : :none
   config.active_support.test_order = :random
 
   config.active_support.halt_callback_chains_on_return_false = false