diff --git a/linuxptp-3.1.1.tgz b/linuxptp-3.1.1.tgz
deleted file mode 100644
index c60ac19df2392923354d01eb050ea69dbccd5992..0000000000000000000000000000000000000000
Binary files a/linuxptp-3.1.1.tgz and /dev/null differ
diff --git a/linuxptp-4.2.tgz b/linuxptp-4.2.tgz
new file mode 100644
index 0000000000000000000000000000000000000000..e9817c9fd13d3c9cfb554f389cec7185797bcc92
Binary files /dev/null and b/linuxptp-4.2.tgz differ
diff --git a/linuxptp.spec b/linuxptp.spec
index 969a8a2ec826377334c7ebcf6485778fa3255abc..24606d0a214fa9fe0b674ebc1e34fa14e5ba0713 100644
--- a/linuxptp.spec
+++ b/linuxptp.spec
@@ -1,5 +1,5 @@
 Name:		linuxptp
-Version:	3.1.1
+Version:	4.2
 Release:        1
 Summary:	Linuxptp is an implementation of the Precision Time Protocol (PTP)
 Group:		System Environment/Base
@@ -74,14 +74,19 @@ echo 'OPTIONS="-a -r"' > %{buildroot}%{_sysconfdir}/sysconfig/phc2sys
 %{_sbindir}/ptp4l
 %{_sbindir}/timemaster
 %{_sbindir}/ts2phc
+%{_sbindir}/tz2alt
 
 
 %files  help
 %{_mandir}/man8/*.8*
 
 %changelog
+* Mon Aug 05 2024 Ge Wang <wang__ge@126.com> - 4.2-1
+- Update to 4.2 version
+ 
 * Sat Feb 04 2023 wenchaofan <349464272@qq.com> - 3.1.1-1
 - Update to 3.1.1 version 
+
 * Wed Sep 22 2021 yaoxin <yaoxin30@huawei.com> - 2.0-5
 - Fix CVE-2021-3570