diff --git a/app/jobs/update_project_topic_job.rb b/app/jobs/update_project_topic_job.rb
index 52341d672..b3ef540aa 100644
--- a/app/jobs/update_project_topic_job.rb
+++ b/app/jobs/update_project_topic_job.rb
@@ -4,6 +4,7 @@ class UpdateProjectTopicJob < ApplicationJob
   queue_as :message
 
   def perform(project_id)
+    return unless $redis_cache.set("UpdateProjectTopicJob:#{project_id}", 1, nx: true, ex: 10.seconds)
     project = Project.find_by(id: project_id)
     return if project.blank?
     begin
@@ -25,7 +26,9 @@ class UpdateProjectTopicJob < ApplicationJob
           topic_count +=1
         end
       end
+      $redis_cache.del("UpdateProjectTopicJob:#{project_id}")
     rescue => e
+      $redis_cache.del("UpdateProjectTopicJob:#{project_id}")
       puts "get_repos_languages: error:#{e.message}"
     end
   end