diff --git a/deps/build.py b/deps/build.py
index 805585bd..c3b159c5 100755
--- a/deps/build.py
+++ b/deps/build.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 import platform
 import os
 import subprocess
diff --git a/deps/upgrade_v8.py b/deps/upgrade_v8.py
index 41d712e0..559c555c 100755
--- a/deps/upgrade_v8.py
+++ b/deps/upgrade_v8.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import urllib.request
 import sys