diff --git a/day-01/day-01.py b/day-01/day-01.py
index 13b2762..4f63d5a 100644
--- a/day-01/day-01.py
+++ b/day-01/day-01.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 from pathlib import Path