diff --git a/app/workers/scheduler/backup_cleanup_scheduler.rb b/app/workers/scheduler/backup_cleanup_scheduler.rb
index d69ca2556ae..85d5312c0ad 100644
--- a/app/workers/scheduler/backup_cleanup_scheduler.rb
+++ b/app/workers/scheduler/backup_cleanup_scheduler.rb
@@ -3,7 +3,7 @@
 class Scheduler::BackupCleanupScheduler
   include Sidekiq::Worker
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     old_backups.reorder(nil).find_each(&:destroy!)
diff --git a/app/workers/scheduler/doorkeeper_cleanup_scheduler.rb b/app/workers/scheduler/doorkeeper_cleanup_scheduler.rb
index bb9dd49ca29..9303a352fb7 100644
--- a/app/workers/scheduler/doorkeeper_cleanup_scheduler.rb
+++ b/app/workers/scheduler/doorkeeper_cleanup_scheduler.rb
@@ -3,7 +3,7 @@
 class Scheduler::DoorkeeperCleanupScheduler
   include Sidekiq::Worker
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     Doorkeeper::AccessToken.where('revoked_at IS NOT NULL').where('revoked_at < NOW()').delete_all
diff --git a/app/workers/scheduler/email_scheduler.rb b/app/workers/scheduler/email_scheduler.rb
index 9a735552482..c052f2fce08 100644
--- a/app/workers/scheduler/email_scheduler.rb
+++ b/app/workers/scheduler/email_scheduler.rb
@@ -3,7 +3,7 @@
 class Scheduler::EmailScheduler
   include Sidekiq::Worker
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   FREQUENCY      = 7.days.freeze
   SIGN_IN_OFFSET = 1.day.freeze
diff --git a/app/workers/scheduler/feed_cleanup_scheduler.rb b/app/workers/scheduler/feed_cleanup_scheduler.rb
index 42b29f4eca0..aa0cc8b8df3 100644
--- a/app/workers/scheduler/feed_cleanup_scheduler.rb
+++ b/app/workers/scheduler/feed_cleanup_scheduler.rb
@@ -4,7 +4,7 @@ class Scheduler::FeedCleanupScheduler
   include Sidekiq::Worker
   include Redisable
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     clean_home_feeds!
diff --git a/app/workers/scheduler/instance_refresh_scheduler.rb b/app/workers/scheduler/instance_refresh_scheduler.rb
index 917404beccb..2af5f385547 100644
--- a/app/workers/scheduler/instance_refresh_scheduler.rb
+++ b/app/workers/scheduler/instance_refresh_scheduler.rb
@@ -3,7 +3,7 @@
 class Scheduler::InstanceRefreshScheduler
   include Sidekiq::Worker
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     Instance.refresh
diff --git a/app/workers/scheduler/ip_cleanup_scheduler.rb b/app/workers/scheduler/ip_cleanup_scheduler.rb
index 853f20e2515..df7e6ad56ac 100644
--- a/app/workers/scheduler/ip_cleanup_scheduler.rb
+++ b/app/workers/scheduler/ip_cleanup_scheduler.rb
@@ -5,7 +5,7 @@ class Scheduler::IpCleanupScheduler
 
   IP_RETENTION_PERIOD = 1.year.freeze
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     clean_ip_columns!
diff --git a/app/workers/scheduler/media_cleanup_scheduler.rb b/app/workers/scheduler/media_cleanup_scheduler.rb
index 671ebf6e02d..24d30a6be59 100644
--- a/app/workers/scheduler/media_cleanup_scheduler.rb
+++ b/app/workers/scheduler/media_cleanup_scheduler.rb
@@ -3,7 +3,7 @@
 class Scheduler::MediaCleanupScheduler
   include Sidekiq::Worker
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     unattached_media.find_each(&:destroy)
diff --git a/app/workers/scheduler/pghero_scheduler.rb b/app/workers/scheduler/pghero_scheduler.rb
index cf557004864..a756b13b933 100644
--- a/app/workers/scheduler/pghero_scheduler.rb
+++ b/app/workers/scheduler/pghero_scheduler.rb
@@ -3,7 +3,7 @@
 class Scheduler::PgheroScheduler
   include Sidekiq::Worker
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     PgHero.capture_space_stats
diff --git a/app/workers/scheduler/scheduled_statuses_scheduler.rb b/app/workers/scheduler/scheduled_statuses_scheduler.rb
index 25df3c07dee..3bf6300b3c4 100644
--- a/app/workers/scheduler/scheduled_statuses_scheduler.rb
+++ b/app/workers/scheduler/scheduled_statuses_scheduler.rb
@@ -3,7 +3,7 @@
 class Scheduler::ScheduledStatusesScheduler
   include Sidekiq::Worker
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     publish_scheduled_statuses!
diff --git a/app/workers/scheduler/trending_tags_scheduler.rb b/app/workers/scheduler/trending_tags_scheduler.rb
index e9891424e0a..94d76d010d8 100644
--- a/app/workers/scheduler/trending_tags_scheduler.rb
+++ b/app/workers/scheduler/trending_tags_scheduler.rb
@@ -3,7 +3,7 @@
 class Scheduler::TrendingTagsScheduler
   include Sidekiq::Worker
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     TrendingTags.update! if Setting.trends
diff --git a/app/workers/scheduler/user_cleanup_scheduler.rb b/app/workers/scheduler/user_cleanup_scheduler.rb
index 8571b59e140..be0c4277dab 100644
--- a/app/workers/scheduler/user_cleanup_scheduler.rb
+++ b/app/workers/scheduler/user_cleanup_scheduler.rb
@@ -3,7 +3,7 @@
 class Scheduler::UserCleanupScheduler
   include Sidekiq::Worker
 
-  sidekiq_options lock: :until_executed, retry: 0
+  sidekiq_options retry: 0
 
   def perform
     clean_unconfirmed_accounts!
diff --git a/config/initializers/sidekiq.rb b/config/initializers/sidekiq.rb
index f2733562fb1..9d348ddd08e 100644
--- a/config/initializers/sidekiq.rb
+++ b/config/initializers/sidekiq.rb
@@ -14,14 +14,30 @@ Sidekiq.configure_server do |config|
     chain.add SidekiqErrorHandler
   end
 
-  config.death_handlers << lambda do |job, _ex|
-    digest = job['lock_digest']
-    SidekiqUniqueJobs::Digests.delete_by_digest(digest) if digest
+  config.server_middleware do |chain|
+    chain.add SidekiqUniqueJobs::Middleware::Server
   end
+
+  config.client_middleware do |chain|
+    chain.add SidekiqUniqueJobs::Middleware::Client
+  end
+
+  SidekiqUniqueJobs::Server.configure(config)
 end
 
 Sidekiq.configure_client do |config|
   config.redis = redis_params
+
+  config.client_middleware do |chain|
+    chain.add SidekiqUniqueJobs::Middleware::Client
+  end
 end
 
 Sidekiq.logger.level = ::Logger.const_get(ENV.fetch('RAILS_LOG_LEVEL', 'info').upcase.to_s)
+
+SidekiqUniqueJobs.configure do |config|
+  config.reaper          = :ruby
+  config.reaper_count    = 1000
+  config.reaper_interval = 600
+  config.reaper_timeout  = 150
+end