diff --git a/ureport/backend/rapidpro.py b/ureport/backend/rapidpro.py
index 12362994f..3990b72a0 100644
--- a/ureport/backend/rapidpro.py
+++ b/ureport/backend/rapidpro.py
@@ -7,7 +7,7 @@
 import logging
 import time
 from collections import defaultdict
-from datetime import timedelta
+from datetime import timedelta, timezone as tzone
 
 import requests
 from django_redis import get_redis_connection
@@ -638,7 +638,7 @@ def pull_results(self, poll, modified_after, modified_before, progress_callback=
                                 latest_synced_obj_time
                             ):
                                 latest_synced_obj_time = datetime_to_json_date(
-                                    temba_run.modified_on.replace(tzinfo=timezone.utc)
+                                    temba_run.modified_on.replace(tzinfo=tzone.utc)
                                 )
 
                             contact_obj = contacts_map.get(temba_run.contact.uuid, None)
diff --git a/ureport/polls/models.py b/ureport/polls/models.py
index 5faf00fd6..645bc25ed 100644
--- a/ureport/polls/models.py
+++ b/ureport/polls/models.py
@@ -5,7 +5,7 @@
 import logging
 import uuid
 from collections import defaultdict
-from datetime import timedelta
+from datetime import timedelta, timezone as tzone
 
 import six
 from django_redis import get_redis_connection
@@ -317,7 +317,7 @@ def pull_refresh_task(self):
         now = timezone.now()
         cache.set(
             Poll.POLL_PULL_ALL_RESULTS_AFTER_DELETE_FLAG % (self.org_id, self.pk),
-            datetime_to_json_date(now.replace(tzinfo=timezone.utc)),
+            datetime_to_json_date(now.replace(tzinfo=tzone.utc)),
             None,
         )
 
diff --git a/ureport/polls/tests.py b/ureport/polls/tests.py
index ed389df08..73825aa15 100644
--- a/ureport/polls/tests.py
+++ b/ureport/polls/tests.py
@@ -3,7 +3,7 @@
 
 import uuid
 import zoneinfo
-from datetime import date, datetime, timedelta
+from datetime import date, datetime, timedelta, timezone as tzone
 
 import six
 from mock import Mock, patch
@@ -130,7 +130,7 @@ def test_pull_refresh_task(self, mock_cache_set, mock_pull_refresh):
             now = timezone.now()
             mock_cache_set.assert_called_once_with(
                 Poll.POLL_PULL_ALL_RESULTS_AFTER_DELETE_FLAG % (poll1.org_id, poll1.pk),
-                datetime_to_json_date(now.replace(tzinfo=timezone.utc)),
+                datetime_to_json_date(now.replace(tzinfo=tzone.utc)),
                 None,
             )
 
@@ -663,7 +663,7 @@ def test_poll_poll_date_view(self):
             self.assertEqual(poll.org, self.uganda)
             self.assertEqual(poll.title, "Poll 1")
             self.assertEqual(
-                poll.poll_date.astimezone(self.uganda.timezone).replace(tzinfo=timezone.utc),
+                poll.poll_date.astimezone(self.uganda.timezone).replace(tzinfo=tzone.utc),
                 yesterday.replace(microsecond=0),
             )
 
diff --git a/ureport/utils/__init__.py b/ureport/utils/__init__.py
index 6abd9d12a..9176d2d25 100644
--- a/ureport/utils/__init__.py
+++ b/ureport/utils/__init__.py
@@ -6,7 +6,7 @@
 import time
 import zoneinfo
 from collections import defaultdict
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone as tzone
 from itertools import chain, islice
 
 import iso8601
@@ -57,7 +57,7 @@ def datetime_to_json_date(dt):
     Formats a datetime as a string for inclusion in JSON
     """
     # always output as UTC / Z and always include milliseconds
-    as_utc = dt.astimezone(timezone.utc)
+    as_utc = dt.astimezone(tzone.utc)
     return as_utc.strftime("%Y-%m-%dT%H:%M:%S.%f")[:-3] + "Z"
 
 
diff --git a/ureport/utils/tests.py b/ureport/utils/tests.py
index 43099773d..5dae118e5 100644
--- a/ureport/utils/tests.py
+++ b/ureport/utils/tests.py
@@ -3,7 +3,7 @@
 
 import json
 import zoneinfo
-from datetime import datetime
+from datetime import datetime, timezone as tzone
 
 import mock
 import redis
@@ -58,7 +58,7 @@ def clear_cache(self):
         r.flushdb()
 
     def test_datetime_to_json_date(self):
-        d1 = datetime(2014, 1, 2, 3, 4, 5, tzinfo=timezone.utc)
+        d1 = datetime(2014, 1, 2, 3, 4, 5, tzinfo=tzone.utc)
         self.assertEqual(datetime_to_json_date(d1), "2014-01-02T03:04:05.000Z")
         self.assertEqual(json_date_to_datetime("2014-01-02T03:04:05.000+00:00"), d1)
         self.assertEqual(json_date_to_datetime("2014-01-02T03:04:05.000Z"), d1)