diff --git a/apps/complaints/serializers.py b/apps/complaints/serializers.py
index 0cb693d..3886875 100644
--- a/apps/complaints/serializers.py
+++ b/apps/complaints/serializers.py
@@ -263,6 +263,9 @@ class ComplaintSerializer(serializers.ModelSerializer):
             "created_at",
             "updated_at",
         ]
+        extra_kwargs = {
+            "due_at": {"required": False},
+        }
 
     def get_domain_details(self, obj):
         """Get domain details"""