There is the procedure to update the free MaxMind GeoIP database :
Go to temp directory and get the latest data :
cd /tmp
wget -q http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz
Unpack the data file :
gzip -d GeoIP.dat.gz
Move the data to the appropriate directory :
mv -f GeoIP.dat /usr/share/GeoIP/GeoIP.dat