diff --git a/docker_build.py b/docker_build.py
index 5aa6bf21f1787853b630b823ba4f5e97339779c7_ZG9ja2VyX2J1aWxkLnB5..9e2fb98079cec5fcc91183acfecc85006242c207_ZG9ja2VyX2J1aWxkLnB5 100755
--- a/docker_build.py
+++ b/docker_build.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # vim: set shiftwidth=4 softtabstop=4:
 """Script to locally build a docker image