diff --git a/src/db/mongo_manager.py b/src/db/mongo_manager.py
index 942fda1..01c72f8 100755
--- a/src/db/mongo_manager.py
+++ b/src/db/mongo_manager.py
@@ -78,7 +78,9 @@ class MongoDbManager:
         try:
             collection_to_use = self.db[CONTACT_LIST_TO_BOOK]
             for contact in contact_list:
-                collection_to_use.insert_one(contact.to_firestore_dict())
+                # collection_to_use.insert_one(contact.to_firestore_dict())
+                collection_to_use.replace_one(filter={'_id': contact.mail, }, replacement=contact.to_firestore_dict(),
+                                              upsert=True)
         except Exception as Error:
             self.logger.info(Error)