diff --git a/config/initializers/100-logster.rb b/config/initializers/100-logster.rb
index beb25ed955c..833e1c60b33 100644
--- a/config/initializers/100-logster.rb
+++ b/config/initializers/100-logster.rb
@@ -100,6 +100,6 @@ RailsMultisite::ConnectionManagement.each_connection do
 end
 
 if Rails.configuration.multisite
-  chained = Rails.logger.instance_variable_get(:@chained)
+  chained = Rails.logger.chained
   chained && chained.first.formatter = RailsMultisite::Formatter.new
 end
diff --git a/config/initializers/101-lograge.rb b/config/initializers/101-lograge.rb
index 8abefac7f3a..6e34cbe30a4 100644
--- a/config/initializers/101-lograge.rb
+++ b/config/initializers/101-lograge.rb
@@ -106,7 +106,7 @@ if (Rails.env.production? && SiteSetting.logging_provider == 'lograge') || ENV["
 
       # Remove ActiveSupport::Logger from the chain and replace with Lograge's
       # logger
-      Rails.logger.instance_variable_get(:@chained).pop
+      Rails.logger.chained.pop
       Rails.logger.chain(config.lograge.logger)
     end
   end