diff --git a/backend/app/api/routes/retrieval.py b/backend/app/api/routes/retrieval.py
index 3af793d..c998180 100644
--- a/backend/app/api/routes/retrieval.py
+++ b/backend/app/api/routes/retrieval.py
@@ -42,6 +42,7 @@ def download_history(payload: ExportHistory, db: Session = Depends(get_db)):
         media_type="application/x-ndjson; charset=utf-8",
         headers={
             "Content-Disposition": f'attachment; filename="nalati-retrieval-{export_id}.jsonl"',
+            "Cache-Control": "no-store",
             "X-Records-SHA256": digest,
             "X-Content-Type-Options": "nosniff",
         },