diff --git a/libnozzle/tests/nozzle_run_updown_exit_false b/libnozzle/tests/nozzle_run_updown_exit_false
index 7da20628..4ff2b727 100755
--- a/libnozzle/tests/nozzle_run_updown_exit_false
+++ b/libnozzle/tests/nozzle_run_updown_exit_false
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 #
 # Copyright (C) 2010-2021 Red Hat, Inc.  All rights reserved.
diff --git a/libnozzle/tests/nozzle_run_updown_exit_true b/libnozzle/tests/nozzle_run_updown_exit_true
index c40177bb..c1e94682 100755
--- a/libnozzle/tests/nozzle_run_updown_exit_true
+++ b/libnozzle/tests/nozzle_run_updown_exit_true
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 #
 # Copyright (C) 2010-2021 Red Hat, Inc.  All rights reserved.