diff --git a/apps/resm/tasks.py b/apps/resm/tasks.py
index bc5f516..8dfbdea 100644
--- a/apps/resm/tasks.py
+++ b/apps/resm/tasks.py
@@ -336,7 +336,7 @@ def download_pdf(paper_id):
         # if paper.has_fulltext_pdf is False and cache.get("openalex_api_exceed") is None:
         #     current_from = "openalex"
         #     msg = save_pdf_from_openalex(paper)
-        if paper.has_fulltext_pdf is False:
+        if paper.has_fulltext_pdf is False and paper.publication_year <= 2021:
             msg = save_pdf_from_scihub(paper)
         return msg, current_from
     finally: