No module named 'paramiko

I recently installed ansible automation controller, and I try to run ansible-playbook in cli, I'm getting following error;

[WARNING]: ansible-pylibssh not installed, falling back to paramiko
[WARNING]: ansible-pylibssh not installed, falling back to paramiko
fatal: [192.168.50.52]: FAILED! => {"changed": false, "msg": "paramiko is not installed: No module named 'paramiko'"}
fatal: [192.168.50.51]: FAILED! => {"changed": false, "msg": "paramiko is not installed: No module named 'paramiko'"}