Module imported in app successfully, but fails to deploy

etherscan.ts
import { ethers, BigNumber } from 'npm:ethers@^5'
import { ethers, BigNumber } from 'npm:ethers@^5'
util.ts
import { FixedNumber } from 'npm:ethers@^5'
import { FixedNumber } from 'npm:ethers@^5'
the app works like it's supposed to, but I can't seem to deploy it to deno.com even though the module is successfully downloaded. Any idea what's happening here?