diff --git a/wgamesolv.py b/wgamesolv.py
index 223875b..7a69485 100755
--- a/wgamesolv.py
+++ b/wgamesolv.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 import os