diff --git a/datacube_ows/utils.py b/datacube_ows/utils.py
index 699b538f..efe7fae3 100644
--- a/datacube_ows/utils.py
+++ b/datacube_ows/utils.py
@@ -7,10 +7,10 @@
 import logging
 from functools import wraps
 from time import monotonic
-from numpy import datetime64
 from typing import Any, Callable, List, Optional, TypeVar
 
 import pytz
+from numpy import datetime64
 from numpy import datetime64 as npdt64
 
 F = TypeVar('F', bound=Callable[..., Any])