diff --git a/backend/api/invoices.py b/backend/api/invoices.py
index 19bb1be..12e6cbb 100644
--- a/backend/api/invoices.py
+++ b/backend/api/invoices.py
@@ -857,7 +857,7 @@ async def list_invoices(
             Invoice.status == InvoiceStatus.REVIEWED
         ))
     elif status:
-        query = query.where(Invoice.status == status)
+        query = query.where(Invoice.status == status.upper())
     if supplier_id:
         query = query.where(Invoice.supplier_id == supplier_id)
     if date_from:
@@ -880,7 +880,7 @@ async def list_invoices(
             Invoice.status == InvoiceStatus.REVIEWED
         ))
     elif status:
-        count_query = count_query.where(Invoice.status == status)
+        count_query = count_query.where(Invoice.status == status.upper())
     if supplier_id:
         count_query = count_query.where(Invoice.supplier_id == supplier_id)
     if date_from: