diff --git a/lib/sidekiq_unique_jobs/middleware.rb b/lib/sidekiq_unique_jobs/middleware.rb
index 3e72aa4bf..4720c343d 100644
--- a/lib/sidekiq_unique_jobs/middleware.rb
+++ b/lib/sidekiq_unique_jobs/middleware.rb
@@ -17,11 +17,6 @@ def configure_middleware
 
     def configure_server_middleware
       Sidekiq.configure_server do |config|
-        config.client_middleware do |chain|
-          require 'sidekiq_unique_jobs/client/middleware'
-          chain.add SidekiqUniqueJobs::Client::Middleware
-        end
-
         config.server_middleware do |chain|
           require 'sidekiq_unique_jobs/server/middleware'
           chain.add SidekiqUniqueJobs::Server::Middleware
diff --git a/lib/sidekiq_unique_jobs/on_conflict.rb b/lib/sidekiq_unique_jobs/on_conflict.rb
index 1ebc6d25d..7dd390a67 100644
--- a/lib/sidekiq_unique_jobs/on_conflict.rb
+++ b/lib/sidekiq_unique_jobs/on_conflict.rb
@@ -14,6 +14,7 @@ module OnConflict
       log: OnConflict::Log,
       raise: OnConflict::Raise,
       reject: OnConflict::Reject,
+      replace: OnConflict::Replace,
       reschedule: OnConflict::Reschedule,
     }.freeze
 
diff --git a/spec/unit/sidekiq_unique_jobs/middleware_spec.rb b/spec/unit/sidekiq_unique_jobs/middleware_spec.rb
index 82cb16d73..d2a77b038 100644
--- a/spec/unit/sidekiq_unique_jobs/middleware_spec.rb
+++ b/spec/unit/sidekiq_unique_jobs/middleware_spec.rb
@@ -21,9 +21,6 @@
       it 'adds client and server middleware when required' do
         expect(Sidekiq).to receive(:configure_server).and_yield(server_config)
 
-        expect(server_config).to receive(:client_middleware).and_yield(client_middleware)
-        expect(client_middleware).to receive(:add).with(SidekiqUniqueJobs::Client::Middleware)
-
         expect(server_config).to receive(:server_middleware).and_yield(server_middleware)
         expect(server_middleware).to receive(:add).with(SidekiqUniqueJobs::Server::Middleware)
         described_class.configure_server_middleware