Where to find "adb" version 1.0.32 to install on Ubuntu?

My laptop has Ubuntu 14.04 as OS. I installed latest version of "android-adb-tools" available in "Synaptic Package Manager". After installation, adb command --help says that adb's version is 1.0.31.

I used adb sideload to install a new ROM on my Samsung device (with TWRP version 2.8.4.0 as recovery), but command returns error: protocol fault (no status) and TWRP says that I have to use adb with version 1.0.32 or higher! Where i could find "android-adb-tools" package with adb version of 1.0.32 or higher?