diff --git a/core/apps/wherehouse/filters/invalid_product.py b/core/apps/wherehouse/filters/invalid_product.py
index 918f5f1..9334bcc 100644
--- a/core/apps/wherehouse/filters/invalid_product.py
+++ b/core/apps/wherehouse/filters/invalid_product.py
@@ -4,9 +4,12 @@ from core.apps.wherehouse.models import InvalidProduct
 
 
 class InvalidProductFilter(django_filters.FilterSet):
+    start_date = django_filters.DateFilter(field_name='expiry_date', lookup_expr='gte')
+    end_date = django_filters.DateFilter(field_name='expiry_date', lookup_expr='lte')
+
     class Meta:
         model = InvalidProduct
         fields = [
             'wherehouse', 'project_folder', 'status', 'invalid_status',
-            'witnesses', 'expiry_date'
+            'witnesses', 'expiry_date', 'start_date', 'end_date',
         ]
\ No newline at end of file