diff --git a/chrony-124-tai.patch b/chrony-124-tai.patch
new file mode 100644
index 0000000..943c854
--- /dev/null
+++ b/chrony-124-tai.patch
@@ -0,0 +1,35 @@
+From 8f5b3084144967b313cfb51285bf6517e06e1b9e Mon Sep 17 00:00:00 2001
+From: Miroslav Lichvar <mlichvar@redhat.com>
+Date: Tue, 4 Jun 2024 16:23:41 +0200
+Subject: [PATCH] test: make 124-tai more reliable
+
+Reported-by: Reinhard Max <max@suse.de>
+---
+ test/simulation/124-tai | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/test/simulation/124-tai b/test/simulation/124-tai
+index 0192e10..e8c909d 100755
+--- a/test/simulation/124-tai
++++ b/test/simulation/124-tai
+@@ -20,7 +20,7 @@ client_conf="
+ refclock SHM 0 dpoll 0 poll 0 tai
+ leapseclist tmp/leap.list
+ leapsecmode ignore
+-maxchange 1e-3 1 0"
++maxchange 1e-3 10 0"
+ 
+ cat > tmp/leap.list <<-EOF
+ 	#$	3676924800
+@@ -43,7 +43,7 @@ client_conf="
+ refclock SHM 0 dpoll 0 poll 0 tai
+ leapseclist tmp/leap.list
+ makestep 1 1
+-maxchange 1e-3 1 0"
++maxchange 1e-3 10 0"
+ 
+ run_test || test_fail
+ check_chronyd_exit || test_fail
+-- 
+GitLab
+
diff --git a/chrony.spec b/chrony.spec
index 0a627df..9f4b58c 100644
--- a/chrony.spec
+++ b/chrony.spec
@@ -70,7 +70,7 @@ Patch2:         chrony-logrotate.patch
 Patch3:         chrony-service-ordering.patch
 Patch7:         chrony-htonl.patch
 Patch8:         chrony.nm-dispatcher.dhcp.patch
-Patch9:         chrony-tai.patch
+Patch9:         chrony-124-tai.patch
 BuildRequires:  NetworkManager-devel
 BuildRequires:  bison
 BuildRequires:  findutils
@@ -182,7 +182,7 @@ e.g. because the servers will be set via DHCP.
 %patch -P 3
 %patch -P 7
 %patch -P 8
-#%patch -P 9
+%patch -P 9
 
 # Remove pool statements from the default /etc/chrony.conf. They will
 # be provided by branding packages in /etc/chrony.d/pool.conf .
@@ -296,7 +296,7 @@ find %{buildroot} -type f | xargs sed -i '
 %ifnarch %ix86
 %check
 # Set random seed to get deterministic results
-#export CLKNETSIM_RANDOM_SEED=24501
+export CLKNETSIM_RANDOM_SEED=24501
 export CFLAGS="%{optflags}"
 make %{?_smp_mflags} -C test/simulation/clknetsim
 pushd test/simulation