diff --git a/packages/browser/scripts/vendor/run.js b/packages/browser/scripts/vendor/run.js
index 9f55ef80d..6cca81139 100644
--- a/packages/browser/scripts/vendor/run.js
+++ b/packages/browser/scripts/vendor/run.js
@@ -3,13 +3,13 @@
  * - uses webpack to build tsub.js
  * - converts tsub.js to tsub.ts, appends comments, and moves it into the source directory
  */
-const { execSync } = require('node:child_process')
+const { execFileSync } = require('node:child_process')
 const path = require('node:path')
 const { createTSFromJSLib } = require('./helpers')
 
 // build tsub.js with webpack
 const configPath = path.join(__dirname, 'webpack.config.vendor.js')
-execSync(`yarn webpack --config ${configPath}`, { stdio: 'inherit' })
+execFileSync('yarn', ['webpack', '--config', configPath], { stdio: 'inherit' })
 
 // create tsub.ts artifact and move to source directory
 const tsubInputBundlePath = path.join(__dirname, 'dist.vendor', 'tsub.js')