Upgrading to 1.4.x

I’ve changed my build.gradle file to now include:
classpath group: ‘org.multi-os-engine’, name: ‘moe-gradle’, version: ‘1.4.+’

and I’ve uninstalled and reinstalled the MOE plugin in Android Studio, but it still says Version: 1.3.0-beta-2 and printing out System.getProperty(“moe.version”) shows the version being used is 1.3.6

Is there something else I should do that will upgrade the plugin to 1.4.x and to make sure that the app uses the latest version?