Upgrade from 2.2.2 to 2.2.3 still remain old version

I followed guide here
wget https://packages.graylog2.org/repo/packages/graylog-2.2-repository_latest.deb sudo dpkg -i graylog-2.2-repository_latest.deb
sudo apt-get update sudo apt-get install graylog-server

but after everything done, I checked and saw it remained old version. No error on output, everything seemed run smoothly.
Please give me your advice.

Thank you for your help!

Hi Daniel,

did you apt-get upgrade ?

If not, than give it a try.

How did you install Graylog in the first place?

Hi Jochen,

I downloaded OVA and imported to my VMware.

See http://docs.graylog.org/en/2.2/pages/configuration/graylog_ctl.html#upgrade-graylog for upgrade instructions.

Thank you all of you for your kindly support.