Install official OTA on rooted Xperia Z2 with CWM.

I rooted my Z2 (D6502) when it was on Android 5.0.2 and now I have an OTA update for 5.1.
I don't have stock recovery. I got CWM in place of it. Everything else is unchanged. I would like to know if there's any way to install the OTA without having to revert back to stock recovery. If yes, could someone please explain the steps.

Thanks.