diff --git a/3.5.4.tar.gz b/3.5.4.tar.gz
deleted file mode 100644
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diff --git a/3.6.4.tar.gz b/3.6.4.tar.gz
new file mode 100644
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diff --git a/libsass.spec b/libsass.spec
index 184c402842fc7f09064e116bd4b2feab16ba49e9..efb70f97dee5ef6429952cd54dec06475385f4a5 100644
--- a/libsass.spec
+++ b/libsass.spec
@@ -1,6 +1,6 @@
 Name:           libsass
-Version:        3.5.4
-Release:        4
+Version:        3.6.4
+Release:        1
 Summary:        A Sass CSS precompiler which is ported for C/C++
 
 License:        MIT
@@ -52,6 +52,9 @@ autoreconf --force --install
 %{_libdir}/pkgconfig/*.pc
 
 %changelog
+* Mon Dec 7 2020 wutao <wutao61@huawei.com> - 3.6.4-1
+- update to 3.6.4 to fix use of unintialized problem
+
 * Tue Dec 31 2019 lihao <lihao129@huawei.com> - 3.5.4-4
 - Package Init