When i run "npm run build" i always getting files names are same as before .File names not changing each time when take build. this cause cache issue for user

"

dist\js\chunk-vendors.4612b971.js      4266.83 KiB       878.30 KiB
  dist\js\app.7bfc5039.js                1162.80 KiB       157.92 KiB
  dist\firebase-messaging-sw.js          1.61 KiB          0.72 KiB
  dist\css\app.c9b295a6.css              453.19 KiB        74.35 KiB
  dist\css\chunk-vendors.e58a3d90.css    153.73 KiB        20.21 KiB"