In order to update chrome extension go to the extension page in your chrome browser from here: chrome://extensions/
Refer below Image:
Then, click on the "Details" and there you will see SalesHandy extension detailed page, then click on "Update" in order to update your chrome extension.
The other way to update the Chrome extension is:
1. Remove the Chrome plugin from extension bar.
2. Download the updated Chrome extension from this link.
3. Hit “Add extension” button.
4. Voila! Once you add SalesHandy extension, you will see the SalesHandy icons in your Gmail account.
Feel free to reach us if you find any difficulties installing the add on.