diff --git a/packages/replay/package.json b/packages/replay/package.json
index 2cbe765c84ea..472296f3a1b5 100644
--- a/packages/replay/package.json
+++ b/packages/replay/package.json
@@ -18,7 +18,7 @@
     "build:watch": "NODE_ENV=production yarn build:all:watch",
     "build:dev:watch": "NODE_ENV=development yarn build:all:watch",
     "build:all:watch": "yarn clean && run-p \"build:worker --watch\" \"build:core --watch\"",
-    "build:npm": "ts-node ./scripts/tmp-prepack.ts --bundles && npm pack ./build/npm #TODO: use JS sdk prepack script after migration",
+    "build:npm": "ts-node ../../scripts/prepack.ts --bundles && npm pack ./build/npm",
     "circularDepCheck": "#TODO comment in after migration: madge --circular src/index.ts",
     "clean": "rimraf build sentry-replay-*.tgz",
     "fix": "run-s fix:eslint fix:prettier",
diff --git a/packages/replay/scripts/tmp-prepack.ts b/packages/replay/scripts/tmp-prepack.ts
deleted file mode 100644
index 06ffea33b996..000000000000
--- a/packages/replay/scripts/tmp-prepack.ts
+++ /dev/null
@@ -1,72 +0,0 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
-/* eslint-disable no-console */
-
-/*
-  THIS IS ONLY TEMPORARILY HERE
-  This file is originally from the sentry-javascript repo. It's only here to ease
-  migration into the monorepo and will be removed once the migration is complete.
-  TODO: Delete once migrated to sentry-javascript
-*/
-
-/*
-  This script prepares the central `build` directory for NPM package creation.
-  It first copies all non-code files into the `build` directory, including `package.json`, which
-  is edited to adjust entry point paths. These corrections are performed so that the paths align with
-  the directory structure inside `build`.
-*/
-
-const fs = require('fs');
-const path = require('path');
-
-const NPM_BUILD_DIR = 'build/npm';
-const BUILD_DIR = 'build';
-
-const ASSETS = ['README.md', 'LICENSE', 'package.json'];
-const ENTRY_POINTS = ['main', 'module', 'types', 'browser'];
-
-const packageWithBundles = process.argv.includes('--bundles');
-const buildDir = packageWithBundles ? NPM_BUILD_DIR : BUILD_DIR;
-
-// eslint-disable-next-line @typescript-eslint/no-var-requires
-const pkgJson: { [key: string]: unknown } = require(path.resolve('package.json'));
-
-// check if build dir exists
-if (!fs.existsSync(path.resolve(buildDir))) {
-  console.error(`\nERROR: Directory '${buildDir}' does not exist in ${pkgJson.name}.`);
-  console.error("This script should only be executed after you've run `yarn build`.");
-  process.exit(1);
-}
-
-// copy non-code assets to build dir
-ASSETS.forEach(asset => {
-  const assetPath = path.resolve(asset);
-  if (!fs.existsSync(assetPath)) {
-    console.error(`\nERROR: Asset '${asset}' does not exist.`);
-    process.exit(1);
-  }
-  const destinationPath = path.resolve(buildDir, path.basename(asset));
-  console.log(`Copying ${path.basename(asset)} to ${path.relative('../..', destinationPath)}.`);
-  fs.copyFileSync(assetPath, destinationPath);
-});
-
-// package.json modifications
-const newPackageJsonPath = path.resolve(buildDir, 'package.json');
-// eslint-disable-next-line @typescript-eslint/no-var-requires
-const newPkgJson: { [key: string]: unknown } = require(newPackageJsonPath);
-
-// modify entry points to point to correct paths (i.e. strip out the build directory)
-ENTRY_POINTS.filter(entryPoint => newPkgJson[entryPoint]).forEach(entryPoint => {
-  newPkgJson[entryPoint] = (newPkgJson[entryPoint] as string).replace(`${buildDir}/`, '');
-});
-
-delete newPkgJson.scripts;
-delete newPkgJson.volta;
-delete newPkgJson.jest;
-
-// write modified package.json to file (pretty-printed with 2 spaces)
-try {
-  fs.writeFileSync(newPackageJsonPath, JSON.stringify(newPkgJson, null, 2));
-} catch (error) {
-  console.error(`\nERROR: Error while writing modified 'package.json' to disk in ${pkgJson.name}:\n`, error);
-  process.exit(1);
-}