Java apache commons lang3 update to 3.12.0 not found in IntelliJ Maven Project

This is my first time using Maven and I want to make the Apache commons lang3 a dependency.

When I added it to the pom.xml file, originally as version 3.1, Intellij comes up with the message:

I looked on the website and it is in fact now on a stable version of 3.12.0, and IntelliJ/Maven knows this, which is why it is suggested. So when I change it to 3.12.0, it comes up saying:

So it both somehow knows that there is a updated version, but doesn't have the ability to update it? Is there something I am missing that I need to do? As I said I haven't used Maven before, so I don't know if there is something else I need to add. For reference all I did was added Maven as a framework support and then added the above tags below the properties tag.

As an additional question, my project doesn't seem to have added lang3 (3.1) as I tried to import it to a class to use it and it cannot be found, what else do I need to do to be able to use lang3 in my project?

As the comments have suggested, I hadn't reloaded the Maven project like I thought, so it is all working now, thank you!