Not able to use facebook graph api v15

[aadityajha1]

I have configured a new app in the facebook developers account and it forces me to use v15.0 API. But botpress is using v12.6. How can I upgrade my code to use the v15.0. While using the v12.6 graph API it gives the error 400 Bad request:

{
    "error": {
        "message": "Unknown path components: /me/messages",
        "type": "OAuthException",
        "code": 2500,
        "fbtrace_id": "Ay0lBm-yBJucULHbD0R5QdZ"
    }
}