diff --git a/get_mail_domains.sh b/get_mail_domains.sh
index 591cb2a..a0dc08b 100755
--- a/get_mail_domains.sh
+++ b/get_mail_domains.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 script_dir="$(dirname $(realpath $0))"
 conf_dir="${script_dir}/conf"