Get Download Link for latest tor from :
Raspbian Mirror - Tor
Download .deb package :
wget http://mirrordirector.raspbian.org/raspbian/pool/main/t/tor/tor_0.2.6.10-1_armhf.deb
Install package :
dpkg -i tor_0.2.6.10-1_armhf.deb
Also you can update geoipdb package from : wget http://mirrordirector.raspbian.org/raspbian/pool/main/t/tor/tor-geoipdb_0.2.6.10-1_all.deb
Then install it : dpkg -i tor-geoipdb_0.2.6.10-1_all.deb