diff --git a/build/download/npm_downloader.py b/build/download/npm_downloader.py
index 369af72..ed4152b 100755
--- a/build/download/npm_downloader.py
+++ b/build/download/npm_downloader.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 #   COPYRIGHT NOTICE STARTS HERE