diff --git a/build/scripts/audit.js b/build/scripts/audit.js
index fe63428f9af9..c13b537399ee 100644
--- a/build/scripts/audit.js
+++ b/build/scripts/audit.js
@@ -9,6 +9,7 @@ const util = require('../lib/util')
 const baseDir = path.resolve(path.join(__dirname, '..'))
 const braveDir = path.join(baseDir, 'src', 'brave')
 const braveVendorDir = path.join(braveDir, 'vendor')
+const syncDir = path.join(braveDir, 'components', 'brave_sync', 'extension')
 
 /**
  * Runs npm audit on a given directory located at pathname
@@ -28,3 +29,6 @@ npmAudit(braveDir)
 fs.readdirSync(braveVendorDir).forEach((dir) => {
   npmAudit(path.join(braveVendorDir, dir))
 })
+fs.readdirSync(syncDir).forEach((dir) => {
+  npmAudit(path.join(syncDir, dir))
+})