Kernel is running on outdated version - how to upgrade?

Hi there,

I'm running a SG210 with latest version "9.351-3". However I have some problems e.g. when trying to configure SSL vpn. Due to that I found out that

1. system is trying to load kernel modules from /lib/modules/3.12.30-36.g744dc63-smp64/
2. however, there's only /lib/modules/3.12.40-26.gc80f187.rb1-smp64

When I check system version with uname -a I see

Linux xxxx.xxxxx.de 3.12.30-36.g744dc63-smp64 #1 SMP Wed Jan 14 23:29:35 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

I checked my other UTM devices and these are running on

Linux xxxx.yyyy.de 3.12.40-26.gc80f187.rb1-smp64 #1 SMP Wed Sep 30 19:29:45 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

So apparently kernel didn't update while firmware did. How can I solve this issue?

Thanks in advance!