diff --git a/tests/test_os_ops_common.py b/tests/test_os_ops_common.py
index 4ab1b4e..50a9ef2 100644
--- a/tests/test_os_ops_common.py
+++ b/tests/test_os_ops_common.py
@@ -2832,7 +2832,7 @@ def test_get_process_children__with_child(
         script = (
             "import time, os, subprocess; "
             "s = str(os.getpid()); "
-            "p = subprocess.Popen('exec sleep 60', shell=True, stdout=subprocess.PIPE); "
+            "p = subprocess.Popen(['sleep', '60'], shell=False, stdout=subprocess.PIPE); "
             "s += ':' + str(p.pid); "
             "print(s, flush=True); "
             "time.sleep(60)"