Installing Latest version of git in ubuntu

My Current git version 1.7.9.5... I need to upgrade to at least git 1.7.10 to have `git clone` command to work properly I tried `sudo add-apt-repository ppa:git-core/ppa` for upgrading but resulted in this : Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 125, in <module> ppa_info = get_ppa_info_from_lp(user, ppa_name) File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 80, in get_ppa_info_from_lp curl.perform() pycurl.error: (7, "couldn't connect to host") What am I supposed to do to get the latest git installed (to upgrade)?