diff --git a/db.py b/db.py
index 000f577..cf428e5 100644
--- a/db.py
+++ b/db.py
@@ -295,7 +295,10 @@ class ProjectDB:
             self.conn.execute("COMMIT")
             return df_id
         except Exception:
-            self.conn.execute("ROLLBACK")
+            try:
+                self.conn.execute("ROLLBACK")
+            except Exception:
+                pass
             raise
 
     # ------------------------------------------------------------------
diff --git a/utils.py b/utils.py
index 805ec79..af80c60 100644
--- a/utils.py
+++ b/utils.py
@@ -225,7 +225,10 @@ def sync_to_db(db, project_name: str, file_path: Path, data: dict) -> None:
 
             db.conn.execute("COMMIT")
         except Exception:
-            db.conn.execute("ROLLBACK")
+            try:
+                db.conn.execute("ROLLBACK")
+            except Exception:
+                pass
             raise
     except Exception as e:
         logger.warning(f"sync_to_db failed: {e}")