I found this thread
by IaguCool, called Xperia Firmware Downloader.
A very nifty program that can find and download the up to date firmware for your Sony device.
Please read the thread on how to decrypt the downloaded files, rather than ask lagu the same question over and over.
EDIT: oh, btw, it's not called .133, it's actually .118
Sony Z1 compact
4.4.4 Kit Slim Evo 8.1 Black
Ext SD: 64Gb