diff --git a/dsst_etl/upload_pdfs.py b/dsst_etl/upload_pdfs.py
index 6f26de2..53bb308 100644
--- a/dsst_etl/upload_pdfs.py
+++ b/dsst_etl/upload_pdfs.py
@@ -7,7 +7,7 @@
 import psycopg2
 import sqlalchemy
 
-from dsst_etl import __version__, logger
+from dsst_etl import __version__, get_db_engine, logger
 from dsst_etl._utils import get_bucket_name, get_compute_context_id
 from dsst_etl.db import get_db_session
 from dsst_etl.models import Documents, Provenance, Works
@@ -188,8 +188,7 @@ def upload_directory(pdf_directory_path: str, comment: Optional[str] = None) ->
     if not pdf_files:
         logger.warning(f"No PDF files found in {pdf_directory_path}")
         return
-
-    uploader = PDFUploader(get_db_session())
+    uploader = PDFUploader(get_db_session(get_db_engine()))
 
     # Upload PDFs
     successful_uploads, failed_uploads = uploader.upload_pdfs(pdf_files)
diff --git a/scripts/ingest_pdfs.py b/scripts/ingest_pdfs.py
index 660e41d..ebe56a0 100644
--- a/scripts/ingest_pdfs.py
+++ b/scripts/ingest_pdfs.py
@@ -1,5 +1,6 @@
 import argparse
 import sys
+from dsst_etl import get_db_engine
 from dsst_etl.extract import extract_data_from_pdf_dir
 from dsst_etl.transform import transform_data
 from dsst_etl.load import load_data
@@ -22,7 +23,7 @@ def main():
 
     try:
         # Initialize database session
-        db_session = get_db_session()
+        db_session = get_db_session(get_db_engine())
         logger.info({"message": "Database session initialized."})
 
         # Step 1: Extract data
diff --git a/scripts/run_upload_rtransparent_data.py b/scripts/run_upload_rtransparent_data.py
index a62350d..16eb7f9 100644
--- a/scripts/run_upload_rtransparent_data.py
+++ b/scripts/run_upload_rtransparent_data.py
@@ -1,4 +1,5 @@
 import argparse
+from dsst_etl import get_db_engine
 from dsst_etl.db import get_db_session
 from dsst_etl.upload_rtransparent_data import RTransparentDataUploader  
 
@@ -9,7 +10,7 @@ def main():
     
     args = parser.parse_args()
     
-    uploader = RTransparentDataUploader(get_db_session())
+    uploader = RTransparentDataUploader(get_db_session(get_db_engine()))
     
     uploader.upload_data(args.input_file)