diff --git a/litestar/contrib/sqlalchemy/base.py b/litestar/contrib/sqlalchemy/base.py
index 6923a5e88d..7aa16cce44 100644
--- a/litestar/contrib/sqlalchemy/base.py
+++ b/litestar/contrib/sqlalchemy/base.py
@@ -114,12 +114,12 @@ class AuditColumns:
 
     created_at: Mapped[datetime] = mapped_column(  # pyright: ignore
         DateTimeUTC(timezone=True),
-        default=datetime.now(timezone.utc),
+        default=lambda: datetime.now(timezone.utc),
     )
     """Date/time of instance creation."""
     updated_at: Mapped[datetime] = mapped_column(  # pyright: ignore
         DateTimeUTC(timezone=True),
-        default=datetime.now(timezone.utc),
+        default=lambda: datetime.now(timezone.utc),
     )
     """Date/time of instance last update."""