diff --git a/contact_bak.xlsx b/contact_bak.xlsx
index 2f793ec..dda10cb 100644
Binary files a/contact_bak.xlsx and b/contact_bak.xlsx differ
diff --git a/db/DbManager.py b/db/DbManager.py
index 437f18b..6b865fc 100644
--- a/db/DbManager.py
+++ b/db/DbManager.py
@@ -28,7 +28,7 @@ class DataManager:
         cred = credentials.Certificate(definitions.ROOT_DIR + "/appointment.json")
         self._app = firebase_admin.initialize_app(cred)
         self._db = firestore.client()
-        self._contact_list = excel_reader.read_contacts()
+        self._contact_list = excel_reader.read_contacts("/contact_bak.xlsx")
 
     def get_all_error_items(self):
         pass