diff --git a/CharLS-2.0.0.tar.gz b/CharLS-2.4.2.tar.gz
similarity index 34%
rename from CharLS-2.0.0.tar.gz
rename to CharLS-2.4.2.tar.gz
index a91dedd337518bea5f86c73c0022e219a6998dfb..0355689aaabd712b78f01ceb0d8f18cb67c84e26 100644
Binary files a/CharLS-2.0.0.tar.gz and b/CharLS-2.4.2.tar.gz differ
diff --git a/CharLS.spec b/CharLS.spec
index 6ef95328f029db6ef79fa34e1a819428898dc56d..78ac685a74611e1c85f4b49d8c5ddbf4f4c6d95f 100644
--- a/CharLS.spec
+++ b/CharLS.spec
@@ -1,5 +1,5 @@
 Name:		CharLS
-Version:	2.0.0
+Version:	2.4.2
 Release:	1
 Summary:	An optimized implementation of the JPEG-LS standard
 License:	BSD
@@ -52,17 +52,15 @@ ctest .
 
 
 %files
-%license License.txt
-%{_libdir}/lib%{name}.so.2
-%{_libdir}/lib%{name}.so.2.0
-
+%{_libdir}/*
 
 %files devel
-%dir %{_includedir}/%{name}/
-%{_includedir}/%{name}/*
-%{_libdir}/lib%{name}.so
+%{_includedir}/charls/*
 
 %changelog
+* Fri Jul 28 2023 chenzixuan <chenzixuan@kylinos.cn> - 2.4.2-1
+- upgrade upstream version 2.4.2
+
 * Tue Mar 22 2022 tanyulong <tanyulong@kylinos.cn> - 2.0.0-1
 - upgrade upstream version 2.0.0