diff --git a/internal/test_unit/python/unit.py b/internal/test_unit/python/unit.py
index 1336df669c..d893cf0259 100755
--- a/internal/test_unit/python/unit.py
+++ b/internal/test_unit/python/unit.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#! /usr/bin/env python3
 
 from datetime import datetime as dt
 import logging