Unable to connect to Kasa Smart Plug HS103 via tp-link API.

Connecting Kasa Smart Plug HS103 

API : https://wap.tplinkcloud.com/ 

Payload : 

{
        "method": "login",
        "params": {
            "appType": "Kasa_Android",
            "cloudUserName": kUser,
            "cloudPassword": kSecret,
            "terminalUUID": str(uuid.uuid4())
        }
}

Error : {'error_code': -23003, 'msg': 'App version is too old'}