diff --git a/rentomatic/repository/postgres_objects.py b/rentomatic/repository/postgres_objects.py
index 334a18c..4e32eea 100644
--- a/rentomatic/repository/postgres_objects.py
+++ b/rentomatic/repository/postgres_objects.py
@@ -1,5 +1,5 @@
 from sqlalchemy import Column, Integer, String, Float
-from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import declarative_base
 
 Base = declarative_base()