How to add additional python3 kernel to Jupyterhub

Hi all,
I am running Jupytherhub with Python 3.6.8 , its working fine for using python 3.6.8 kernel.

# jupyter-kernelspec list
Available kernels:
  python3    /usr/local/python3/3_6_8/share/jupyter/kernels/python3

Please help me, how can i add additional python3 kernel - 3.7.6 to Jupyterhub(which is running with Python 3.6.8).

Regards,
Zain