Upgrade Single Debian Package Source
1apt-get install --only-upgrade <packagename>
See details in https://askubuntu.com/questions/44122/how-to-upgrade-a-single-package-using-apt-get
1apt-get install --only-upgrade <packagename>
See details in https://askubuntu.com/questions/44122/how-to-upgrade-a-single-package-using-apt-get