diff --git a/packages/Webkul/Admin/src/Config/system.php b/packages/Webkul/Admin/src/Config/system.php
index b1c89827f1d..49977bbc408 100644
--- a/packages/Webkul/Admin/src/Config/system.php
+++ b/packages/Webkul/Admin/src/Config/system.php
@@ -2014,7 +2014,7 @@
                 'name'          => 'invoice_number_length',
                 'title'         => 'admin::app.configuration.index.sales.invoice-settings.invoice-number.length',
                 'type'          => 'text',
-                'validation'    => 'numeric',
+                'validation'    => 'numeric|min:0|max:10',
                 'channel_based' => true,
                 'locale_based'  => true,
             ], [