hi i cannot seem to do an update in kali (nethunter)Kali GNU/Linux Rolling \n \l

i keep getting this error:

root@kali:~# apt-get update
Err:1 http://http.kali.org/kali kali-rolling InRelease
Temporary failure resolving 'http.kali.org'
Reading package lists... Done
W: Failed to fetch http://http.kali.org/kali/dists/kali-rolling/InRelease Temporary failure resolving 'http.kali.org'
W: Some index files failed to download. They have been ignored, or old ones used instead.

My internet works fine, my DNS is set to google DNS and my GPG keyring is up to date.

root@kali:~# kali-archive-keyring is already the newest version (2015.2).

this is my source.list:

deb http://http.kali.org/kali kali-rolling main contrib non-free
deb-src http://http.kali.org/kali kali-rolling main contrib non-free

my kali info:

Linux kali 3.4.105-g766de8b #1 SMP PREEMPT Sun May 29 13:33:54 PDT 2016 armv7l GNU/Linux

Distributor ID: Kali
Description: Kali GNU/Linux Rolling
Release: kali-rolling
Codename: kali-rolling