This question already has an answer here:
How do i update only pidgin using apt-get?
> sudo apt-get update pidgin
but i get
> The update command takes no arguments
To update Pidgin to 2.10.7, just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below:
As man apt-get describes it,
As described in other answers, if you want a newest version than the one in standard packages of your distribution, you have to either edit your sources lists, add a new PPA, install from more recent binaries or compile from source.