diff --git a/backend/ohq/management/commands/course_stat.py b/backend/ohq/management/commands/course_stat.py
index f6888c4c..62c44a9f 100644
--- a/backend/ohq/management/commands/course_stat.py
+++ b/backend/ohq/management/commands/course_stat.py
@@ -1,6 +1,5 @@
 from django.core.management.base import BaseCommand
 from django.utils import timezone
-import datetime
 
 from ohq.models import Course, Question
 from ohq.statistics import (