diff --git a/systemd-timesyncd-default-to-aliyun.patch b/systemd-timesyncd-default-to-aliyun.patch
new file mode 100644
index 0000000000000000000000000000000000000000..1862bee5239d8d19d94c5117fddd7b11e99ae757
--- /dev/null
+++ b/systemd-timesyncd-default-to-aliyun.patch
@@ -0,0 +1,11 @@
+--- systemd-stable-252.4/src/timesync/timesyncd.conf.in.orig	2023-03-03 12:29:52.389506272 +0800
++++ systemd-stable-252.4/src/timesync/timesyncd.conf.in	2023-03-03 12:30:20.177506272 +0800
+@@ -14,7 +14,7 @@
+ 
+ [Time]
+ #NTP=
+-#FallbackNTP={{NTP_SERVERS}}
++FallbackNTP={{NTP_SERVERS}}
+ #RootDistanceMaxSec=5
+ #PollIntervalMinSec=32
+ #PollIntervalMaxSec=2048
diff --git a/systemd.spec b/systemd.spec
index f57621afb47babc077bbe69ec2cb5f487ce6fc24..31d30ba464a999e2a2b38acb5af119f0eb723eea 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -1,4 +1,4 @@
-%define anolis_release 1
+%define anolis_release 2
 %global __requires_exclude pkg-config
 
 %global pkgdir %{_prefix}/lib/systemd
@@ -54,6 +54,9 @@ Source22:       sysusers.attr
 Source23:       sysusers.prov
 Source24:       sysusers.generate-pre.sh
 
+# Use aliyun ntp server as default ntp server
+Patch0000:      systemd-timesyncd-default-to-aliyun.patch
+
 # Backports of patches from upstream (0000–0499)
 Patch0001:      0001-pam-align-second-and-third-columns.patch
 Patch0002:      0002-pam-add-a-call-to-pam_namespace.patch
@@ -66,7 +69,6 @@ Patch0490:      use-bfq-scheduler.patch
 # Adjust upstream config to use our shared stack
 Patch0491:      fedora-use-system-auth-in-pam-systemd-user.patch
  
-
 BuildRequires:  gcc
 BuildRequires:  gcc-c++
 BuildRequires:  clang
@@ -422,14 +424,11 @@ The %{name}-doc package contains documentation files for %{name}.
 %autosetup -n %{name}-stable-%{version} -p1
 
 %build
-%global ntpvendor %(source /etc/os-release; echo ${ID})
-%{!?ntpvendor: echo 'NTP vendor zone is not set!'; exit 1}
-
 CONFIGURE_OPTS=(
          -Dmode=release
         -Dsysvinit-path=/etc/rc.d/init.d
         -Drc-local=/etc/rc.d/rc.local
-        -Dntp-servers='0.%{ntpvendor}.pool.ntp.org 1.%{ntpvendor}.pool.ntp.org 2.%{ntpvendor}.pool.ntp.org 3.%{ntpvendor}.pool.ntp.org'
+        -Dntp-servers='ntp.aliyun.com 0.cn.pool.ntp.org 1.cn.pool.ntp.org 2.cn.pool.ntp.org 3.cn.pool.ntp.org'
         -Ddns-servers=
         -Duser-path=/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin
         -Dservice-watchdog=
@@ -917,6 +916,9 @@ fi
 %{_docdir}/%{name}-%{doc}/20-yama-ptrace.conf
 
 %changelog
+* Fri Mar 03 2023 Funda Wang <fundawang@yeah.net> - 252.4-2
+- Use aliyun as default ntp server
+
 * Thu Jan 05 2023 happy_orange <songnannan@linux.alibaba.com> - 252.4-1
 - update to 252.4