diff --git a/libbytesize-2.7.tar.gz b/libbytesize-2.7.tar.gz
deleted file mode 100644
index afbe39a..0000000
Binary files a/libbytesize-2.7.tar.gz and /dev/null differ
diff --git a/libbytesize-2.9.tar.gz b/libbytesize-2.9.tar.gz
new file mode 100644
index 0000000..453cf6a
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diff --git a/libbytesize.spec b/libbytesize.spec
index 79e9350..9ff28dc 100644
--- a/libbytesize.spec
+++ b/libbytesize.spec
@@ -3,7 +3,7 @@
 %define with_tools      1
 
 Name:           libbytesize
-Version:        2.7
+Version:        2.9
 Release:        1
 Summary:        A library for working with sizes in bytes
 License:        LGPLv2+
@@ -116,6 +116,9 @@ make check
 %endif
 
 %changelog
+* Thu Feb 1 2024 caixiaomeng <caixiaomeng2@huawei.com> - 2.9-1
+- update version to 2.9
+
 * Thu Jan 19 2023 gaoruoshu <gaoruoshu@huawei.com> - 2.7-1
 - update version to 2.7