diff --git a/B03_FileInput/B03_FileInput_Repository.py b/B03_FileInput/B03_FileInput_Repository.py
index 9b472e82..d963108f 100644
--- a/B03_FileInput/B03_FileInput_Repository.py
+++ b/B03_FileInput/B03_FileInput_Repository.py
@@ -304,7 +304,7 @@ async def list_project_input_files(
         await cursor.execute(
             """
             SELECT f.id, f.file_type, f.original_filename, f.file_size_mb, f.status,
-                   f.created_at
+                   f.upload_at
             FROM input_files f
             INNER JOIN (
                 SELECT MAX(id) AS id
diff --git a/B03_FileInput/B03_FileInput_Router.py b/B03_FileInput/B03_FileInput_Router.py
index f468ba44..3e15076c 100644
--- a/B03_FileInput/B03_FileInput_Router.py
+++ b/B03_FileInput/B03_FileInput_Router.py
@@ -656,7 +656,7 @@ async def get_project_upload_overview(
                     original_filename=str(row["original_filename"]),
                     file_size_mb=float(row["file_size_mb"] or 0.0),
                     status=str(row["status"]),
-                    uploaded_at=str(row["created_at"]) if row.get("created_at") else None,
+                    uploaded_at=str(row["upload_at"]) if row.get("upload_at") else None,
                 )
                 for row in files
             ],