diff --git a/tests/test_edf2bids.py b/tests/test_edf2bids.py
index f58fcfa..8d87098 100644
--- a/tests/test_edf2bids.py
+++ b/tests/test_edf2bids.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import json
 from pathlib import Path