diff --git a/finalynx/portfolio/folder.py b/finalynx/portfolio/folder.py
index 7667049..dbe1c01 100644
--- a/finalynx/portfolio/folder.py
+++ b/finalynx/portfolio/folder.py
@@ -1,3 +1,4 @@
+from dataclasses import dataclass
 from enum import Enum
 from typing import Any
 from typing import Dict
@@ -7,7 +8,6 @@
 from typing import Union
 
 import numpy as np
-from attr import dataclass
 from rich.tree import Tree
 
 if TYPE_CHECKING: