diff --git a/conf/views.py b/conf/views.py
index be73744..dbb6618 100644
--- a/conf/views.py
+++ b/conf/views.py
@@ -7,7 +7,6 @@ import smtplib
 import time
 from datetime import datetime
 
-import pytz
 import requests
 from django.conf import settings
 from django.utils import timezone
@@ -226,7 +225,7 @@ class DashboardInfoAPI(APIView):
     def get(self, request):
         today = datetime.today()
         today_submission_count = Submission.objects.filter(
-            create_time__gte=datetime(today.year, today.month, today.day, 0, 0, tzinfo=pytz.UTC)).count()
+            create_time__gte=datetime(today.year, today.month, today.day, 0, 0)).count()
         recent_contest_count = Contest.objects.exclude(end_time__lt=timezone.now()).count()
         judge_server_count = len(list(filter(lambda x: x.status == "normal", JudgeServer.objects.all())))
         return self.success({
diff --git a/deploy/requirements.txt b/deploy/requirements.txt
index df890cd..3db2059 100644
--- a/deploy/requirements.txt
+++ b/deploy/requirements.txt
@@ -18,7 +18,6 @@ pillow==10.2.0
 psycopg==3.1.19
 psycopg-binary==3.1.19
 python-dateutil==2.8.2
-pytz==2024.1
 qrcode==7.4.2
 raven==6.10.0
 XlsxWriter==3.2.0