If there is an update available for a module you have installed, you update it through the Modules panel.
If there are any updates available for you portal you will see a dot in the menu.
Open the Module panel and you can see all the modules install in your portal. HubSpot Version is the version that is installed. The Version column is the latest version in Sprocket Rocket.
Click Upgrade Module to update to the latest version.
NOTE: Any custom changes to that module will be overwritten