Stay With Kernel After Upgrading from Ubuntu 16.04 LTS to Ubuntu 18.04 LTS

I know this might not be the right terminal command for the upgrade to 18.04 LTS Just wanting to know if I could stay on the same kernel on the one that I have for 16.04 LTS because I would like to upgrade to the latiest version and stay secure with updates… Please if you could link me a video on how to install with out updating the kernel I don’t know if it is possible so am just asking thanks for your help…

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