diff --git a/src/cal_tools/calcat_interface.py b/src/cal_tools/calcat_interface.py
index 698ebe5f7d120e9804d3e6226e71ebb8f153fa21..e0398524faa7febc7e531e4b53261a65aedc7cf4 100644
--- a/src/cal_tools/calcat_interface.py
+++ b/src/cal_tools/calcat_interface.py
@@ -1,9 +1,10 @@
 """Interfaces to calibration constant data."""
 from datetime import date, datetime, time, timezone
 from functools import lru_cache
+from logging import warning
 from pathlib import Path
 from weakref import WeakKeyDictionary
-from logging import warning
+
 import h5py
 import pasha as psh
 from calibration_client import CalibrationClient