diff --git a/8.1.1.tar.gz b/8.1.1.tar.gz
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diff --git a/9.1.0.tar.gz b/9.1.0.tar.gz
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diff --git a/fmt.spec b/fmt.spec
index 79a49ce374987b1111a75bc76e6ab05bbc2091f8..cfe3bfd67224f86cd6f366eb71273a35966caaef 100644
--- a/fmt.spec
+++ b/fmt.spec
@@ -1,7 +1,7 @@
 %define         anolis_release 1
 
 Name:           fmt
-Version:        9.1.0
+Version:        8.1.1
 Release:        %{anolis_release}%{?dist}
 Summary:        a formatting library providing a fast and safe alternative to C stdio and C++ iostreams.
 
@@ -69,5 +69,8 @@ The %{name}-doc package contains documentation files for %{name}.
 %doc ChangeLog.rst README.rst
 
 %changelog
+* Tue Mar 28 2023 Feng Su <sufeng@linux.alibaba.com>  - 8.1.1-1
+- Downgrading to v8.1.1
+
 * Sun Mar 26 2023 Feng Su <sufeng@linux.alibaba.com>  - 9.1.0-1
 - package init from upstream