diff --git a/swh/lister/core/db_utils.py b/swh/lister/core/db_utils.py
--- a/swh/lister/core/db_utils.py
+++ b/swh/lister/core/db_utils.py
@@ -11,7 +11,7 @@
     try:
         yield session
         session.commit()
-    except:
+    except:  # noqa
         session.rollback()
         raise
     finally: