diff --git a/scripts/expression_change_human_mrna/replace.py b/scripts/expression_change_human_mrna/replace.py
index 73eae74..4f5cb20 100644
--- a/scripts/expression_change_human_mrna/replace.py
+++ b/scripts/expression_change_human_mrna/replace.py
@@ -159,7 +159,7 @@ def add_new_data_to_db(cursor: MySQLCursor, df: DataFrame, table: namedtuple):
     new_data_df = new_data_df.rename(columns={f"{table.dataset_column}{POSTFIX}": "name_en"})
 
     if table.has_created_date:
-        new_data_df["updated_at"] = time.time()
+        new_data_df["created_at"] = time.time()
 
     count_rows = new_data_df.shape[0]
     column_names = ', '.join(new_data_df.columns)
diff --git a/scripts/expression_change_human_mrna/upload.py b/scripts/expression_change_human_mrna/upload.py
index 26e06c2..1751d72 100644
--- a/scripts/expression_change_human_mrna/upload.py
+++ b/scripts/expression_change_human_mrna/upload.py
@@ -118,7 +118,7 @@ def add_new_data_to_db(cursor: MySQLCursor, df: DataFrame, table: namedtuple):
     new_data_df = new_data_df.rename(columns={f"{table.dataset_column}{PREFIX}": "name_en"})
 
     if table.has_created_date:
-        new_data_df["updated_at"] = time.time()
+        new_data_df["created_at"] = time.time()
 
     count_rows = new_data_df.shape[0]
     column_names = ', '.join(new_data_df.columns)