diff --git a/deepin-default-settings.spec b/deepin-default-settings.spec
index 7d2d6c2..d90acbd 100644
--- a/deepin-default-settings.spec
+++ b/deepin-default-settings.spec
@@ -1,6 +1,6 @@
 Name:           deepin-default-settings
 Version:        2020.10.26
-Release:        2
+Release:        3
 Summary:        default settings for deepin destkop environment
 License:        GPLv3
 URL:            https://github.com/linuxdeepin/default-settings
@@ -54,7 +54,9 @@ if [ ! -f /root/Desktop/dde-computer.desktop ] && [ ! -f /root/Desktop/dde-trash
         install -m644 /etc/skel/Music/bensound-sunny.mp3   /root//Music/ || true
 fi
 
-for i in $(getent passwd | grep -v nologin | grep -v halt | grep -v shutdown | grep -v sync); do
+declare -a passwd_array
+mapfile -t passwd_array <<<"$(getent passwd | grep -v nologin | grep -v halt | grep -v shutdown | grep -v sync)"
+for i in "${passwd_array[@]}"; do  
   userid=$(echo "$i" | awk -F ':' '{print $3}')
   groupid=$(echo "$i" | awk -F ':' '{print $4}')
   userhome=$(echo "$i" | awk -F ':' '{print $6}')
@@ -122,6 +124,9 @@ fi
 %{_datadir}/deepin-default-settings/fcitx/*.png
 
 %changelog
+* Thu Jul 21 2022 wangqia <wangqia@uniontech.com> - 2020.10.26-3
+- Optimize post script
+
 * Tue Mar 08 2022 liweiganga <liweiganga@uniontech.com> - 2020.10.26-2
 - fix install warning