Go to <https://appexchange.salesforce.com/>. Then, click the "Search AppExchange" search box.

Find and click the Vision-e Scan package.

After reviewing the package information, click the "Get It Now" button.

Select the org for package installation, or choose to install the package in a Sandbox org.

Confirm the installation details and accept the terms and conditions. 

On the upgrade screen select the installation setting. 

An earlier version is installed. It can be upgraded while preserving the existing data.
Installed: Scanning 12 (1.393)New Version: Scanning 12 (1.393)
package profile mapping
Install for Admins Only
Install for All Users
Install for Specific Profiles...
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Once the upgrade process has finished, Salesforce will send you an email confirming that the installation was successful.

Following the installation, verify the package has been successfully updated by checking the installed packages section in Setup.

Locate the Scanning package and ensure that the version number matches that of the newest release.

Upgrade the Vision-e Scan Package from the AppExchange