mongoDB connection 시 오류 문의

DB 커넥션을 따라하는데 useCreateIndex: true, useFindAndModify: false

해당 옵션 두개가 설정이 안됩니다. 저 두개 옵션을 제외하니 정상 실행되는데 이유를 알 수 있을까요?

해당 옵션들이 없어도 진행하는데 문제가 없을까요?

Example app listening on port 5000}!
MongoParseError: options usecreateindex, usefindandmodify are not supported
    at parseOptions (D:\Src\boiler-plate\node_modules\mongodb\lib\connection_string.js:290:15)
    at new MongoClient (D:\Src\boiler-plate\node_modules\mongodb\lib\mongo_client.js:65:63)
    at D:\Src\boiler-plate\node_modules\mongoose\lib\connection.js:801:16
    at new Promise (<anonymous>)
    at NativeConnection.Connection.openUri (D:\Src\boiler-plate\node_modules\mongoose\lib\connection.js:798:19)
    at D:\Src\boiler-plate\node_modules\mongoose\lib\index.js:381:10
    at D:\Src\boiler-plate\node_modules\mongoose\lib\helpers\promiseOrCallback.js:41:5
    at new Promise (<anonymous>)
    at promiseOrCallback (D:\Src\boiler-plate\node_modules\mongoose\lib\helpers\promiseOrCallback.js:40:10)    
    at Mongoose._promiseOrCallback (D:\Src\boiler-plate\node_modules\mongoose\lib\index.js:1234:10) {
  [Symbol(errorLabels)]: Set(0) {}
}