diff --git a/custom_components/hilo/__init__.py b/custom_components/hilo/__init__.py
index 99c3d229..0933d95d 100644
--- a/custom_components/hilo/__init__.py
+++ b/custom_components/hilo/__init__.py
@@ -781,7 +781,7 @@ async def _fetch_legacy_gateway_dsn(self, new_mac: str) -> str | None:
         returns its old DSN-based identifier if it exists. If it doesn't,
         it returns Noneto use the MAC address instead."""
         device_registry = dr.async_get(self._hass)
-        for device in device_registry.devices.values():
+        for device in device_registry.devices:
             if device.manufacturer != "Hilo" or device.model != "EQ000017":
                 continue
             for domain, identifier in device.identifiers: