diff --git a/requirements.txt b/requirements.txt
index ca6b0a6a..df4ea6ce 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,6 @@ html5lib
 ipython
 Pillow
 pilkit>=3.0 # Kvůli kompatibilitě s Pillow>=10.0.0
-pytz
 pexpect
 traitlets
 Unidecode
diff --git a/seminar/templatetags/utils.py b/seminar/templatetags/utils.py
index 4ba33a0e..ca400050 100644
--- a/seminar/templatetags/utils.py
+++ b/seminar/templatetags/utils.py
@@ -1,7 +1,6 @@
 from django import template
 from django.utils.safestring import mark_safe
 from datetime import datetime, timedelta
-from pytz import timezone
 from mamweb.settings import TIME_ZONE
 import logging
 register = template.Library()
diff --git a/seminar/testutils.py b/seminar/testutils.py
index 7076d5f0..c3d64f56 100644
--- a/seminar/testutils.py
+++ b/seminar/testutils.py
@@ -4,7 +4,6 @@ import datetime
 
 from django.contrib.auth.models import Permission
 from django.contrib.auth.models import Group
-from pytz import timezone
 import random
 import lorem
 import django.contrib.auth
@@ -177,13 +176,13 @@ def gen_organizatori(rnd, osoby, last_rocnik):
 				year=1993 + pusobnost,
 				month=rnd.randint(1, 12),
 				day=rnd.randint(1, 28),
-				tzinfo=timezone('CET'),
+				tzinfo=datetime.timezone.utc,
 				)
 			do = datetime.datetime(
 				year=od.year + rnd.randint(1, 6),
 				month=rnd.randint(1, 12),
 				day=rnd.randint(1, 28),
-				tzinfo=timezone('CET'),
+				tzinfo=datetime.timezone.utc,
 				)
 			#aktualni organizatori jeste nemaji vyplnene organizuje_do