diff --git a/back/db.py b/back/db.py
index 065b868..6c1b951 100644
--- a/back/db.py
+++ b/back/db.py
@@ -11,11 +11,7 @@ from fastapi import Depends
 
 SQLALCHEMY_DATABASE_URL = "sqlite:///./sql_app.db"
 
-engine = create_engine(
-    SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False}
-)
-
-SessionLocal = sessionmaker(bind=engine, expire_on_commit=False)
+SessionLocal = sessionmaker(class_='Session', bind=Engine(sqlite:///./sql_app.db), autoflush=True, autocommit=False, expire_on_commit=False)
 
 database = SessionLocal()
 Base = declarative_base()
\ No newline at end of file