diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18aae48e9..61d805da2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 
 - Remove Spring from development
 - Switch to the Zeitwerk autoloader
+- Use Rails 6.1 default configuration
 
 ## Release 153 - 2024-12-02
 
diff --git a/config/application.rb b/config/application.rb
index 8b5b0d8ce..2b1d2f5c9 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -37,7 +37,7 @@ class Application < Rails::Application
     end
 
     # Initialize configuration defaults for originally generated Rails version.
-    config.load_defaults 6.0
+    config.load_defaults 6.1
 
     # Settings in config/environments/* take precedence over those specified here.
     # Application configuration can go into files in config/initializers
diff --git a/config/initializers/new_framework_defaults_6_1.rb b/config/initializers/new_framework_defaults_6_1.rb
deleted file mode 100644
index 9526b835a..000000000
--- a/config/initializers/new_framework_defaults_6_1.rb
+++ /dev/null
@@ -1,67 +0,0 @@
-# Be sure to restart your server when you modify this file.
-#
-# This file contains migration options to ease your Rails 6.1 upgrade.
-#
-# Once upgraded flip defaults one by one to migrate to the new default.
-#
-# Read the Guide for Upgrading Ruby on Rails for more info on each option.
-
-# Support for inversing belongs_to -> has_many Active Record associations.
-# Rails.application.config.active_record.has_many_inversing = true
-
-# Track Active Storage variants in the database.
-# Rails.application.config.active_storage.track_variants = true
-
-# Apply random variation to the delay when retrying failed jobs.
-# Rails.application.config.active_job.retry_jitter = 0.15
-
-# Stop executing `after_enqueue`/`after_perform` callbacks if
-# `before_enqueue`/`before_perform` respectively halts with `throw :abort`.
-# Rails.application.config.active_job.skip_after_callbacks_if_terminated = true
-
-# Specify cookies SameSite protection level: either :none, :lax, or :strict.
-#
-# This change is not backwards compatible with earlier Rails versions.
-# It's best enabled when your entire app is migrated and stable on 6.1.
-# Rails.application.config.action_dispatch.cookies_same_site_protection = :lax
-
-# Generate CSRF tokens that are encoded in URL-safe Base64.
-#
-# This change is not backwards compatible with earlier Rails versions.
-# It's best enabled when your entire app is migrated and stable on 6.1.
-# Rails.application.config.action_controller.urlsafe_csrf_tokens = true
-
-# Specify whether `ActiveSupport::TimeZone.utc_to_local` returns a time with an
-# UTC offset or a UTC time.
-# ActiveSupport.utc_to_local_returns_utc_offset_times = true
-
-# Change the default HTTP status code to `308` when redirecting non-GET/HEAD
-# requests to HTTPS in `ActionDispatch::SSL` middleware.
-# Rails.application.config.action_dispatch.ssl_default_redirect_status = 308
-
-# Use new connection handling API. For most applications this won't have any
-# effect. For applications using multiple databases, this new API provides
-# support for granular connection swapping.
-# Rails.application.config.active_record.legacy_connection_handling = false
-
-# Make `form_with` generate non-remote forms by default.
-# Rails.application.config.action_view.form_with_generates_remote_forms = false
-
-# Set the default queue name for the analysis job to the queue adapter default.
-# Rails.application.config.active_storage.queues.analysis = nil
-
-# Set the default queue name for the purge job to the queue adapter default.
-# Rails.application.config.active_storage.queues.purge = nil
-
-# Set the default queue name for the incineration job to the queue adapter default.
-# Rails.application.config.action_mailbox.queues.incineration = nil
-
-# Set the default queue name for the routing job to the queue adapter default.
-# Rails.application.config.action_mailbox.queues.routing = nil
-
-# Set the default queue name for the mail deliver job to the queue adapter default.
-# Rails.application.config.action_mailer.deliver_later_queue_name = nil
-
-# Generate a `Link` header that gives a hint to modern browsers about
-# preloading assets when using `javascript_include_tag` and `stylesheet_link_tag`.
-# Rails.application.config.action_view.preload_links_header = true