diff --git a/config/initializers/new_framework_defaults_7_0.rb b/config/initializers/new_framework_defaults_7_0.rb
index 69617923c..17d7767c2 100644
--- a/config/initializers/new_framework_defaults_7_0.rb
+++ b/config/initializers/new_framework_defaults_7_0.rb
@@ -32,7 +32,7 @@ Rails.application.config.action_view.apply_stylesheet_media_default = false
 
 # Don't override ActiveSupport::TimeWithZone.name and use the default Ruby
 # implementation.
-# Rails.application.config.active_support.remove_deprecated_time_with_zone_name = true
+Rails.application.config.active_support.remove_deprecated_time_with_zone_name = true
 
 # Change the format of the cache entry.
 # Changing this default means that all new cache entries added to the cache