diff --git a/CONTRIBUTIONS.md b/CONTRIBUTIONS.md
index bb614bf..171b015 100644
--- a/CONTRIBUTIONS.md
+++ b/CONTRIBUTIONS.md
@@ -29,13 +29,6 @@ To run unit tests for the `@actions/artifact` package:
 3. Change working directory to `packages/artifact`
 4. Run jest tests: `npm run test`
 
-After building the package, run `npm run test:package` from `packages/artifact`
-to pack it, install it in a temporary consumer with only production dependencies,
-and check that its public entry point and protobuf RPC runtime can be imported.
-This check requires access to the npm registry and also runs in the unit-test CI
-matrix, without monorepo hoisting or code-generation tooling masking missing
-runtime dependencies.
-
 ## Within upload-artifact or download-artifact actions
 
 Any easy way to test changes for the official upload/download actions is to fork them, compile changes and run them.
diff --git a/package.json b/package.json
index e509374..2f0179b 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,6 @@
   "scripts": {
     "audit-moderate": "npm install && npm audit --json --audit-level=moderate > audit.json",
     "test": "cd ../../ && npm run test ./packages/artifact",
-    "test:package": "node scripts/test-package.mjs",
     "bootstrap": "cd ../../ && npm run bootstrap",
     "tsc-run": "tsc && cp src/internal/shared/package-version.cjs lib/internal/shared/",
     "tsc": "npm run bootstrap && npm run tsc-run",
diff --git a/scripts/test-package.mjs b/scripts/test-package.mjs
deleted file mode 100644
index f7ee612..0000000
--- a/scripts/test-package.mjs
+++ /dev/null
@@ -1,77 +0,0 @@
-import assert from 'node:assert/strict'
-import {execFileSync} from 'node:child_process'
-import {mkdtempSync, readFileSync, rmSync} from 'node:fs'
-import {tmpdir} from 'node:os'
-import {join} from 'node:path'
-import {fileURLToPath} from 'node:url'
-
-const packageDirectory = fileURLToPath(new URL('../', import.meta.url))
-const npm = process.env.npm_execpath
-assert.ok(npm, 'Run this check with npm run test:package')
-
-const consumer = mkdtempSync(join(tmpdir(), 'artifact-package-'))
-const env = {...process.env}
-delete env.NODE_PATH
-
-function runNpm(args, cwd) {
-  return execFileSync(process.execPath, [npm, ...args], {
-    cwd,
-    env,
-    encoding: 'utf8'
-  })
-}
-
-try {
-  const [{filename}] = JSON.parse(
-    runNpm(
-      ['pack', '--json', '--ignore-scripts', '--pack-destination', consumer],
-      packageDirectory
-    )
-  )
-  runNpm(
-    [
-      'install',
-      '--omit=dev',
-      '--ignore-scripts',
-      '--no-audit',
-      '--no-fund',
-      '--package-lock=false',
-      join(consumer, filename)
-    ],
-    consumer
-  )
-
-  const manifest = JSON.parse(
-    readFileSync(
-      join(consumer, 'node_modules/@actions/artifact/package.json'),
-      'utf8'
-    )
-  )
-  assert.equal(manifest.dependencies['@protobuf-ts/runtime-rpc'], '^2.11.1')
-  execFileSync(
-    process.execPath,
-    [
-      '--input-type=module',
-      '--eval',
-      `
-        import assert from 'node:assert/strict'
-        import {createRequire} from 'node:module'
-        import client, {DefaultArtifactClient} from '@actions/artifact'
-        import {ServiceType} from '@protobuf-ts/runtime-rpc'
-
-        assert.ok(client instanceof DefaultArtifactClient)
-        assert.equal(typeof ServiceType, 'function')
-        const require = createRequire(import.meta.url)
-        assert.throws(() => require.resolve('@protobuf-ts/plugin'), {
-          code: 'MODULE_NOT_FOUND'
-        })
-      `
-    ],
-    {cwd: consumer, env, stdio: 'inherit'}
-  )
-  console.log(
-    'Packed artifact imports successfully with production dependencies'
-  )
-} finally {
-  rmSync(consumer, {recursive: true, force: true})
-}