diff --git a/config/initializers/schedule_tasks.rb b/config/initializers/schedule_tasks.rb
index fb391d8..22803b5 100644
--- a/config/initializers/schedule_tasks.rb
+++ b/config/initializers/schedule_tasks.rb
@@ -1,10 +1,12 @@
 # config/initializers/schedule_tasks.rb
-
 Rails.application.config.after_initialize do
   if Rails.env.production? && !ENV["RAILS_BUILD"]
     begin
-      unless Rails.cache.read("startup_task_running")
-        Rails.cache.write("startup_task_running", true, expires_in: 1.hour)
+      redis_key = "startup_task_running"
+      unless Sidekiq.redis { |conn| conn.get(redis_key) }
+        Sidekiq.redis do |conn|
+          conn.setex(redis_key, 1.hour.to_i, "1")
+        end
 
         RefreshSitemapWorker.perform_async
 
@@ -13,7 +15,7 @@ Rails.application.config.after_initialize do
     rescue => e
       Rails.logger.error "Error scheduling startup task: #{e.message}"
     ensure
-      Rails.cache.delete("startup_task_running")
+      Sidekiq.redis { |conn| conn.del(redis_key) }
     end
   end
-end
+end
\ No newline at end of file