(1) Click the menu button at the top right of Chrome

(2) Click on "More Tools"

(3) Click "Extensions"

Chrome extension menu

(4) Find the "Keywords Everywhere - Keyword Tool" extension.

(5) Click on the "Details" button

Find Chrome extension

(6) On The Details Page, enable the "Developer Mode".

(7) Click the "Update" Button

Update Chrome extension

(8) The extension will now update and you should see the latest version here