diff --git a/tests/test_dns.py b/tests/test_dns.py
index d762a83..3233e30 100755
--- a/tests/test_dns.py
+++ b/tests/test_dns.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #
 # Tests the DNS configuration of a Mail-in-a-Box.
 #
diff --git a/tests/test_mail.py b/tests/test_mail.py
index 8975eb8..686d07a 100755
--- a/tests/test_mail.py
+++ b/tests/test_mail.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # Tests sending and receiving mail by sending a test message to yourself.
 
 import sys, imaplib, smtplib, uuid, time
diff --git a/tests/test_smtp_server.py b/tests/test_smtp_server.py
index 91d46de..914c94b 100755
--- a/tests/test_smtp_server.py
+++ b/tests/test_smtp_server.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 import smtplib, sys
 
 if len(sys.argv) < 3: