diff --git a/judge/widgets/datetime.py b/judge/widgets/datetime.py
index 5734698..d205e1c 100644
--- a/judge/widgets/datetime.py
+++ b/judge/widgets/datetime.py
@@ -2,7 +2,7 @@ from django import forms
 from django.templatetags.static import static
 from django.utils.html import format_html
 from django.forms.utils import flatatt
-from django.utils.dateparse import parse_datetime
+from django.utils.dateparse import parse_datetime, parse_date
 
 
 class DateTimePickerWidget(forms.DateTimeInput):