diff --git a/Gemfile b/Gemfile
index b3d0a818d5e..7af47881b75 100644
--- a/Gemfile
+++ b/Gemfile
@@ -82,7 +82,7 @@ gem 'rqrcode', '~> 3.0'
 gem 'ruby-progressbar', '~> 1.13'
 gem 'sanitize', '~> 7.0'
 gem 'scenic', '~> 1.7'
-gem 'sidekiq', '< 8'
+gem 'sidekiq', '< 9'
 gem 'sidekiq-bulk', '~> 0.2.0'
 gem 'sidekiq-scheduler', '~> 6.0'
 gem 'sidekiq-unique-jobs', '> 8'
diff --git a/Gemfile.lock b/Gemfile.lock
index 464d5bd2c97..b0bf819481f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -823,12 +823,12 @@ GEM
     securerandom (0.4.1)
     shoulda-matchers (6.5.0)
       activesupport (>= 5.2.0)
-    sidekiq (7.3.9)
-      base64
-      connection_pool (>= 2.3.0)
-      logger
-      rack (>= 2.2.4)
-      redis-client (>= 0.22.2)
+    sidekiq (8.0.7)
+      connection_pool (>= 2.5.0)
+      json (>= 2.9.0)
+      logger (>= 1.6.2)
+      rack (>= 3.1.0)
+      redis-client (>= 0.23.2)
     sidekiq-bulk (0.2.0)
       sidekiq
     sidekiq-scheduler (6.0.1)
@@ -1077,7 +1077,7 @@ DEPENDENCIES
   sanitize (~> 7.0)
   scenic (~> 1.7)
   shoulda-matchers
-  sidekiq (< 8)
+  sidekiq (< 9)
   sidekiq-bulk (~> 0.2.0)
   sidekiq-scheduler (~> 6.0)
   sidekiq-unique-jobs (> 8)
diff --git a/README.md b/README.md
index 12027289659..5c0e596b727 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,7 @@ Mastodon is a **free, open-source social network server** based on [ActivityPub]
 
 - **Ruby** 3.2+
 - **PostgreSQL** 13+
-- **Redis** 6.2+
+- **Redis** 7.0+
 - **Node.js** 20+
 
 This repository includes deployment configurations for **Docker and docker-compose**, as well as for other environments like Heroku and Scalingo. For Helm charts, reference the [mastodon/chart repository](https://github.com/mastodon/chart). A [**standalone** installation guide](https://docs.joinmastodon.org/admin/install/) is available in the main documentation.
diff --git a/app/workers/concerns/bulk_mailing_concern.rb b/app/workers/concerns/bulk_mailing_concern.rb
index 5f8154d7fa6..98fcc0541df 100644
--- a/app/workers/concerns/bulk_mailing_concern.rb
+++ b/app/workers/concerns/bulk_mailing_concern.rb
@@ -7,7 +7,7 @@ module BulkMailingConcern
     job_class = ActionMailer::MailDeliveryJob
 
     Sidekiq::Client.push_bulk({
-      'class' => ActiveJob::QueueAdapters::SidekiqAdapter::JobWrapper,
+      'class' => Sidekiq::ActiveJob::Wrapper,
       'wrapped' => job_class,
       'queue' => mailer_class.deliver_later_queue_name,
       'args' => args_array.map do |args|