diff --git a/backend/session.py b/backend/session.py
index e31de96..87a5a24 100644
--- a/backend/session.py
+++ b/backend/session.py
@@ -24,7 +24,8 @@ database_url = (
 
 engine = create_async_engine(
     database_url,
-    pool_timeout=2000
+    pool_timeout=2000,
+    pool_pre_ping=True,
 )
 session_factory = async_sessionmaker(
     engine,