diff --git a/apps/resm/tasks.py b/apps/resm/tasks.py
index 8326c5c..b149110 100644
--- a/apps/resm/tasks.py
+++ b/apps/resm/tasks.py
@@ -63,12 +63,12 @@ def get_paper_meta_from_openalex(publication_year:int, search_key:str):
 ELSEVIER_APIKEY = 'aa8868cac9e27d6153ab0a0acd7b50bf'
 @shared_task(base=CustomTask)
 def get_abstract_from_elsevier(publication_year: int = None, number_of_task:int = 100):
-    qs = Paper.objects.filter(has_abstract=True)
+    qs = Paper.objects.filter(has_abstract=False)
     if publication_year is not None:
         qs = qs.filter(publication_year=publication_year)
     qs = qs.exclude(
         fail_reason="elsevier_doi_not_found"
-    ).order_by("-publication_date")
+    ).order_by("publication_date")
 
     if not qs.exists():
         return "done"