diff --git a/scripts/chores.py b/scripts/chores.py
index 8e8aa04..5efc0ed 100644
--- a/scripts/chores.py
+++ b/scripts/chores.py
@@ -26,7 +26,7 @@ CHORES = (
 )
 
 
-due_date = (datetime.utcnow() + timedelta(days=EXPIRY_DAYS)).isoformat()
+due_date = (datetime.utcnow() + timedelta(days=EXPIRY_DAYS)).isoformat().split(".")[0] + "Z"
 
 payload = {
     "title": "Weekly Chores",