Install InfluxDB 1.7.7

Can’t successfully install InfluxDB version 1.7.7

At first I download the zipped file,
sudo wget
after I unzipped it, I install InfluxDB:
sudo apt-get install InfluxDB

I can successfully run InfluxDB, however, when I check the Influxd version, it tells me it is version 1.6.4,
:~$ influxd version
InfluxDB v1.6.4 (git: unknown unknown)

I don’t understand the reason that cause this problem, I just started to handle the InfluxDB program, sorry for asking such an ignorant question.