diff --git a/setup.cfg b/setup.cfg
index 5b66e37..d846443 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -60,7 +60,7 @@ install_requires =
 dev =
     black~=25.1.0
     build~=1.2.1
-    isort~=5.13.0
+    isort~=6.0.0
     types-pytz~=2024.2.0.20241221
     pre-commit~=3.8.0
     types-python-dateutil~=2.9.0