diff --git a/src/apps/api/serializers/competitions.py b/src/apps/api/serializers/competitions.py
index 41cd51341..c62346d9c 100644
--- a/src/apps/api/serializers/competitions.py
+++ b/src/apps/api/serializers/competitions.py
@@ -179,7 +179,7 @@ def get_used_submissions_per_day(self, obj):
                 # Get all submissions which are not failed and belongs to this user for this phase
                 qs = obj.submissions.filter(owner=user, parent__isnull=True).exclude(status='Failed')
                 # Count submissions made today
-                daily_submission_count = qs.filter(created_when__day=now().day).count()
+                daily_submission_count = qs.filter(created_when__date=now().date()).count()
                 return daily_submission_count
         return 0