Android: Keep Up-To-Date with NDK LTS Version?

Hello, how possible is it to keep SQLCipher for Android (in maven) up-to-date with the most recent NDK LTS version?

I noticed that SQLCipher for Android is built with r20. However, the latest LTS version is r21e and r22b is the latest non-LTS version: NDK Downloads  |  Android NDK  |  Android Developers