diff --git a/lib/tasks/resource_publish.rake b/lib/tasks/resource_publish.rake
index 2df0c6145..df8fefda1 100644
--- a/lib/tasks/resource_publish.rake
+++ b/lib/tasks/resource_publish.rake
@@ -3,9 +3,9 @@
 namespace :resource_publish do
   desc "start publish resource"
   task :publish => :environment do
-    attachments = Attachment.where("publish_time = '#{Date.today}'")
+    attachments = Attachment.where("publish_time <= '#{Date.today}'")
     attachments.each do |attachment|
-      attachment.update_column('is_publish', 1)
+      attachment.update_column('is_publish', 1) if attachment.is_publish == 0
     end
   end
 end
\ No newline at end of file