Compress not working instead making big size

[krishnaTORQUE]

Instead of compress or minify the image size, it is making image size bigger.

const imagemin = require('imagemin')
const imageminJpegtran = require('imagemin-jpegtran')
const fs = require('fs').promises

Try 1

await imagemin(['./old/1.jpg'], {
    destination: './new',
    plugins: [imageminJpegtran()],
  })

Try 2

let oldFile = await fs.readFile('./old/1.jpg')
  let newFile = await imagemin.buffer(oldFile, {
    plugins: [imageminJpegtran()],
  })
  await fs.writeFile('./new/1.jpg', newFile)

In both cases image size is increasing. The image size is 175.3 kb after run its become 179.2 kb.