diff --git a/ethtool-6.4.tar.xz b/ethtool-6.4.tar.xz
deleted file mode 100644
index 7fab24c..0000000
Binary files a/ethtool-6.4.tar.xz and /dev/null differ
diff --git a/ethtool-6.6.tar.xz b/ethtool-6.6.tar.xz
new file mode 100644
index 0000000..694251a
Binary files /dev/null and b/ethtool-6.6.tar.xz differ
diff --git a/ethtool.spec b/ethtool.spec
index 6094851..50d478c 100644
--- a/ethtool.spec
+++ b/ethtool.spec
@@ -1,6 +1,6 @@
 Name:		ethtool
 Epoch:		2
-Version:	6.4
+Version:	6.6
 Release:	1
 Summary:	Settings tool for Ethernet NICs
 License:	GPL-2.0-only AND GPL-2.0-or-later
@@ -53,6 +53,12 @@ make check
 %{_mandir}/man8/%{name}.8*
 
 %changelog
+* Thu Dec 28 2023 yanglu <yanglu72@h-partners.com> - 2:6.6-1
+- Type:requirement
+- Id:NA
+- SUG:NA
+- DESC:update ethtool version to 6.6
+
 * Mon Jul 17 2023 gaihuiying <eaglegai@163.com> - 2:6.4-1
 - Type:requirement
 - Id:NA