diff --git a/holoviews/plotting/bokeh/util.py b/holoviews/plotting/bokeh/util.py
index 4edb0e259c..36cd7f1795 100644
--- a/holoviews/plotting/bokeh/util.py
+++ b/holoviews/plotting/bokeh/util.py
@@ -86,7 +86,7 @@ def convert_timestamp(timestamp):
     """
     Converts bokehJS timestamp to datetime64.
     """
-    datetime = dt.datetime.fromtimestamp(timestamp/1000., dt.timezone.utc)
+    datetime = dt.datetime.utcfromtimestamp(timestamp/1000.)
     return np.datetime64(datetime.replace(tzinfo=None))