Scopes don't match current API version?

[tjaensch]

I created Coinbase API key and secret and then followed the steps in the README but I'm getting this error when I try to receive my account balance:

2018/01/18 09:43:37 Response body:
{"success":false,"error":"Scopes don't match current API version."}
2018/01/18 09:43:37 GET https://api.coinbase.com/v1/account/balance failed. Response code was 401 Unauthorized

This is the main.go file:

package main

import (
"fmt"
"github.com/fabioberger/coinbase-go"
"log"
"os"
)

func main() {

c := coinbase.ApiKeyClient(os.Getenv("COINBASE_KEY"), os.Getenv("COINBASE_SECRET"))

balance, err := c.GetBalance()
if err != nil {
	log.Fatal(err)
}
fmt.Printf("Balance is %f BTC", balance)

}

Am I doing something wrong or does the current Coinbase API not work any longer with your library?