diff --git a/Dockerfile b/Dockerfile
index 1d68bb7..42b984f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,7 @@ WORKDIR /sidekiq
 COPY Gemfile* ./
 COPY config.ru .
 
+RUN bundle update sidekiq
 RUN bundle install
 
 CMD rackup config.ru -o 0.0.0.0 -p 3030 -q
diff --git a/Gemfile b/Gemfile
index f9d7660..5271c96 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,5 @@
 source 'https://rubygems.org'
 
-gem 'sidekiq', '~> 5.1'
-gem 'sinatra', '~> 2.0'
\ No newline at end of file
+gem 'sidekiq', '~> 6.4.0'
+gem 'sinatra', '~> 2.0'
+gem 'redis-namespace', '~> 1.8.1', :require => 'redis/namespace'
diff --git a/README.md b/README.md
index b6e8d68..3c0ef97 100644
--- a/README.md
+++ b/README.md
@@ -51,4 +51,10 @@ services:
       SIDEKIQ_PASSWORD: password123
     ports:
       - 3030:3030
-```
\ No newline at end of file
+```
+
+## Build a new container if you make changes
+
+```
+docker build -t aschzero/sidekiq-web .
+```
diff --git a/config.ru b/config.ru
index 3ecb88f..7915f1b 100644
--- a/config.ru
+++ b/config.ru
@@ -1,15 +1,19 @@
 require 'sidekiq'
 require 'sidekiq/web'
+require 'securerandom'; File.open(".session.key", "w") {|f| f.write(SecureRandom.hex(32)) }
 
 sidekiq_user = ENV.fetch('SIDEKIQ_USER') { 'admin' }
 sidekiq_password = ENV.fetch('SIDEKIQ_PASSWORD') { 'admin' }
 
 Sidekiq.configure_client do |config|
-  config.redis = { url: ENV['REDIS_URL'] }
+  config.redis = { url: ENV['REDIS_URL'], namespace: ENV['REDIS_NAMESPACE'] }
 end
 
 Sidekiq::Web.use(Rack::Auth::Basic) do |user, password|
   [user, password] == [sidekiq_user, sidekiq_password]
 end
 
+# now use the secret with a session cookie middleware
+use Rack::Session::Cookie, secret: File.read(".session.key"), same_site: true, max_age: 86400
+
 run Sidekiq::Web