diff --git a/bin/update-tables.py b/bin/update-tables.py
index 2dcc337..079c825 100644
--- a/bin/update-tables.py
+++ b/bin/update-tables.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
 Update the python Unicode tables for wcwidth.