diff --git a/app/jobs/activity_pub/fetch_job.rb b/app/jobs/activity_pub/fetch_job.rb
index 73fc1c9f..b19d5e41 100644
--- a/app/jobs/activity_pub/fetch_job.rb
+++ b/app/jobs/activity_pub/fetch_job.rb
@@ -30,9 +30,8 @@ class ActivityPub
         current_type = object.type
         content = FastJsonparser.parse(response.body)
 
-        object.with_lock do
-          object.update!(content: content, type: ActivityPub::Object.type_from(content).name)
-        end
+        # Modificar atómicamente
+        ::ActivityPub::Object.lock.find(object_id).update!(content: content, type: ActivityPub::Object.type_from(content).name)
 
         object = ::ActivityPub::Object.find(object_id)
         # Actualiza la mención