diff --git a/requirements.txt b/requirements.txt
index 32aaeba..7c90092 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,5 @@
 WebOb>=1.8.0
 simplegeneric
-pytz
 netaddr>=0.7.12
 # TODO: Drop this when Python 3.10 is our minimum supported version
 importlib_metadata>=4.4 # Apache-2.0
diff --git a/wsme/tests/test_utils.py b/wsme/tests/test_utils.py
index f9464c8..66d06c8 100644
--- a/wsme/tests/test_utils.py
+++ b/wsme/tests/test_utils.py
@@ -1,6 +1,5 @@
 import datetime
 import unittest
-import pytz
 
 from wsme import utils
 
@@ -27,11 +26,14 @@ class TestUtils(unittest.TestCase):
         good_times = [
             ('12:03:54', datetime.time(12, 3, 54)),
             ('23:59:59.000004', datetime.time(23, 59, 59, 4)),
-            ('01:02:03+00:00', datetime.time(1, 2, 3, 0, pytz.UTC)),
-            ('01:02:03+23:59', datetime.time(1, 2, 3, 0,
-                                             pytz.FixedOffset(1439))),
-            ('01:02:03-23:59', datetime.time(1, 2, 3, 0,
-                                             pytz.FixedOffset(-1439))),
+            ('01:02:03+00:00', datetime.time(
+                1, 2, 3, 0, datetime.timezone.utc)),
+            ('01:02:03+23:59', datetime.time(
+                1, 2, 3, 0,
+                datetime.timezone(datetime.timedelta(minutes=1439)))),
+            ('01:02:03-23:59', datetime.time(
+                1, 2, 3, 0,
+                datetime.timezone(datetime.timedelta(minutes=-1439)))),
         ]
         ill_formatted_times = [
             '24-12-2004'
@@ -54,13 +56,16 @@ class TestUtils(unittest.TestCase):
             ('2012-05-14T23:59:59.000004',
              datetime.datetime(2012, 5, 14, 23, 59, 59, 4)),
             ('1856-07-10T01:02:03+00:00',
-             datetime.datetime(1856, 7, 10, 1, 2, 3, 0, pytz.UTC)),
+             datetime.datetime(1856, 7, 10, 1, 2, 3, 0,
+                               datetime.timezone.utc)),
             ('1856-07-10T01:02:03+23:59',
-             datetime.datetime(1856, 7, 10, 1, 2, 3, 0,
-                               pytz.FixedOffset(1439))),
+             datetime.datetime(
+                1856, 7, 10, 1, 2, 3, 0,
+                datetime.timezone(datetime.timedelta(minutes=1439)))),
             ('1856-07-10T01:02:03-23:59',
-             datetime.datetime(1856, 7, 10, 1, 2, 3, 0,
-                               pytz.FixedOffset(-1439))),
+             datetime.datetime(
+                1856, 7, 10, 1, 2, 3, 0,
+                datetime.timezone(datetime.timedelta(minutes=-1439)))),
         ]
         ill_formatted_datetimes = [
             '24-32-2004',
diff --git a/wsme/utils.py b/wsme/utils.py
index a8e2c8b..6eb6f54 100644
--- a/wsme/utils.py
+++ b/wsme/utils.py
@@ -2,7 +2,6 @@ import builtins
 import datetime
 import decimal
 from http import client as http_client
-import pytz
 import re
 
 try:
@@ -91,14 +90,15 @@ def parse_isodatetime(value):
 
 def _parse_tzparts(parts):
     if 'tz_z' in parts and parts['tz_z'] == 'Z':
-        return pytz.UTC
+        return datetime.timezone.utc
     if 'tz_min' not in parts or not parts['tz_min']:
         return None
 
     tz_minute_offset = (int(parts['tz_hour']) * 60 + int(parts['tz_min']))
     tz_multiplier = -1 if parts['tz_sign'] == '-' else 1
+    minutes = tz_multiplier * tz_minute_offset
 
-    return pytz.FixedOffset(tz_multiplier * tz_minute_offset)
+    return datetime.timezone(datetime.timedelta(minutes=minutes))
 
 
 def is_valid_code(code_value):