diff --git a/spec/rails_integration_spec.rb b/spec/rails_integration_spec.rb
index a08369f..05ae4a4 100644
--- a/spec/rails_integration_spec.rb
+++ b/spec/rails_integration_spec.rb
@@ -38,6 +38,9 @@ class FormeRails < Rails::Application
     if Rails.respond_to?(:version) && Rails.version >= '7.1' && Rails.version < '7.2'
       config.active_support.cache_format_version = 7.1
     end
+    if Rails.respond_to?(:version) && Rails.version >= '8'
+      config.active_support.to_time_preserves_timezone = :zone
+    end
     begin
       initialize!
     rescue NoMethodError