> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/digital-river-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digitalriver.com/digital-river-api/administration/dashboard/profile-settings/updating-your-phone-number.md).
# Updating your phone number
You must keep your mobile phone number current for authentication and in case you forget your password. If you forget your password, Digital River can use this information to recover it.
To update or change your trusted mobile phone number for account recovery, click your user name in the upper-right corner and click **Profile settings** on the drop-down menu to open the Profile settings page. Scroll down to the **SMS** setting in the **Account security** section and verify that this setting is enabled.
Click **Update** beside the **Trusted mobile number** to open a dialog box to change the number.\
\
Complete the required information:
1. Select your country from the **Country** drop-down list.
2. Enter your mobile number in the **Mobile phone number** field.
3. Type your password in the **Password** field if it is not already there. To keep your account secure, enter your password to re-authenticate your login.
4. Click **Change phone number**.
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