diff --git a/backend/src/modules/dashboard/dashboard.service.ts b/backend/src/modules/dashboard/dashboard.service.ts
index 59fa0d3..c21551e 100644
--- a/backend/src/modules/dashboard/dashboard.service.ts
+++ b/backend/src/modules/dashboard/dashboard.service.ts
@@ -39,7 +39,7 @@ export class DashboardService {
       select: ['tax_amount'],
     });
 
-    const totalTax = invoices.reduce((sum, inv) => sum + Number(inv.tax_amount || 0), 0);
+    const totalTax = invoices.reduce((sum, inv: any) => sum + Number(inv.tax_amount || 0), 0);
 
     // Get recent activities (last 5 invoices)
     const recentInvoices = await this.invoiceRepository.find({