diff -Naur shadow-4.8.1.orig/etc/useradd shadow-4.8.1/etc/useradd
--- shadow-4.8.1.orig/etc/useradd	2019-07-23 11:26:08.000000000 -0400
+++ shadow-4.8.1/etc/useradd	2020-09-11 07:30:55.851727165 -0400
@@ -3,6 +3,6 @@
 HOME=/home
 INACTIVE=-1
 EXPIRE=
-SHELL=/bin/bash
+SHELL=/bin/zsh
 SKEL=/etc/skel
 CREATE_MAIL_SPOOL=yes