diff --git a/config/initializers/new_framework_defaults_7_1.rb b/config/initializers/new_framework_defaults_7_1.rb
index 19993439f..7a45f6d21 100644
--- a/config/initializers/new_framework_defaults_7_1.rb
+++ b/config/initializers/new_framework_defaults_7_1.rb
@@ -83,7 +83,7 @@ Rails.application.config.active_record.allow_deprecated_singular_associations_na
 # serializer. Therefore, this setting should only be enabled after all replicas
 # have been successfully upgraded to Rails 7.1.
 #++
-# Rails.application.config.active_job.use_big_decimal_serializer = true
+Rails.application.config.active_job.use_big_decimal_serializer = true
 
 ###
 # Specify if an `ArgumentError` should be raised if `Rails.cache` `fetch` or