---
title: "Step 12. Change Default Certificate"
description: "Veeam ONE uses TLS to ensure secure data communication between Veeam ONE Web Client and a web browser. That is, the Veeam ONE Web Client is available over HTTPS."
canonical: "https://helpcenter.veeam.com/docs/one/userguide/upgrade_change_certificate.html"
breadcrumb: "User Guide > Installing Veeam ONE > Upgrading to Veeam ONE 13 > Step 12. Change Default Certificate"
dateModified: "2026-10-23"
---

# Step 12. Change Default Certificate

Veeam ONE uses TLS to ensure secure data communication between Veeam ONE Web Client and a web browser. That is, the Veeam ONE Web Client is available over HTTPS.

During upgrade, Veeam ONE generates a self-signed certificate that is used to secure traffic. You can replace this default certificate with your own self-signed certificate or a certificate that was obtained from a Certificate Authority. This step is optional, and is not required if you want to keep the default certificate generated during the upgrade procedure.

For details on Veeam ONE certificates, see [Using Certificate Signed by Internal CA](certs_internal_ca.md).

::: note

If you replace the default certificate with another self-signed certificate, you must configure a trusted connection between the Veeam ONE Web Client and a web browser later. For details, see [Configuring Trusted Connection](access.md#configure_trusted).

:::

## Assigning Certificate to the Veeam ONE Web Client Website

To assign a new certificate to the Veeam ONE Web Client:

1. Log on to the machine where the Veeam ONE Web Service component is installed.
2. Open the Internet Information Services (IIS) Manager, expand the *localhost* node and navigate to **Sites**.
3. In the **Connections** pane, select *VeeamReporter*.
4. In the **Actions** > **Edit Site** pane on the right, click **Bindings**.
5. In the **Site Bindings** window, select the existing binding and click **Edit**.
6. From the **SSL certificate** list, select the necessary certificate and click **OK**.
7. In the **Site Bindings** window, click **Close**.

[![Assign SSL Certificate](images/https_reporter.png "Assign SSL Certificate")](images/https_reporter.png){.toggle scale=50}