diff --git a/2.4.2.tar.gz b/2.4.2.tar.gz
new file mode 100644
index 0000000..0355689
Binary files /dev/null and b/2.4.2.tar.gz differ
diff --git a/CharLS-2.0.0.tar.gz b/CharLS-2.0.0.tar.gz
deleted file mode 100644
index a91dedd..0000000
Binary files a/CharLS-2.0.0.tar.gz and /dev/null differ
diff --git a/CharLS.spec b/CharLS.spec
index 6ef9532..d77b3b8 100644
--- a/CharLS.spec
+++ b/CharLS.spec
@@ -1,10 +1,10 @@
 Name:		CharLS
-Version:	2.0.0
+Version:	2.4.2
 Release:	1
 Summary:	An optimized implementation of the JPEG-LS standard
 License:	BSD
 URL:		https://github.com/team-charls/charls
-Source0:	https://github.com/team-charls/charls/archive/%{version}/%{name}-%{version}.tar.gz
+Source0:	https://github.com/team-charls/charls/archive/refs/tags/%{version}.tar.gz
 
 BuildRequires:	gcc
 BuildRequires:	gcc-c++
@@ -52,17 +52,22 @@ ctest .
 
 
 %files
-%license License.txt
-%{_libdir}/lib%{name}.so.2
-%{_libdir}/lib%{name}.so.2.0
+%license LICENSE.md
+%{_libdir}/libcharls.so.2
+%{_libdir}/libcharls.so.2.4.2
 
 
 %files devel
-%dir %{_includedir}/%{name}/
-%{_includedir}/%{name}/*
-%{_libdir}/lib%{name}.so
+%dir %{_includedir}/charls/
+%{_includedir}/charls/*
+%{_libdir}/libcharls.so
+%{_libdir}/cmake/*
+%{_libdir}/pkgconfig/charls.pc
 
 %changelog
+* Tue Sep 05 2023 Ge Wang <wang__ge@126.com> - 2.4.2-1
+- Upgrade to version 2.4.2
+
 * Tue Mar 22 2022 tanyulong <tanyulong@kylinos.cn> - 2.0.0-1
 - upgrade upstream version 2.0.0