diff --git a/beets/vfs.py b/beets/vfs.py
index 177b35cb1..1e217a43b 100644
--- a/beets/vfs.py
+++ b/beets/vfs.py
@@ -16,14 +16,14 @@
 libraries.
 """
 
-from typing import Any, NamedTuple
+from typing import Any, Dict, NamedTuple
 
 from beets import util
 
 
 class Node(NamedTuple):
-    files: dict[Any, Any]
-    dirs: dict[Any, Any]
+    files: Dict[str, Any]
+    dirs: Dict[str, Any]
 
 
 def _insert(node, path, itemid):