diff --git a/assimp-5.4.2.tar.gz b/assimp-5.4.2.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..4564f6ebcb96be23122ead7c3f28ece55e725d4c
Binary files /dev/null and b/assimp-5.4.2.tar.gz differ
diff --git a/assimp.spec b/assimp.spec
index 1a8dfea6ab0cd233a949bfbe918f677f53c1f4d7..249b85afdb5eebe0b038a9a423be99af5b103747 100644
--- a/assimp.spec
+++ b/assimp.spec
@@ -1,19 +1,11 @@
 Name:          assimp
-Version:       5.3.1
-Release:       3
+Version:       5.4.2
+Release:       1
 Summary:       Library to load and process various 3D model formats into applications.
 License:       BSD and MIT and LGPL-2.1 and LGPL-2.0 and GPL-2.0 and LGPL-3.0 and GPL-3.0
 URL:           http://www.assimp.org/
-#wget https://github.com/assimp/assimp/archive/v%{version}.tar.gz
-#tar xf v%{version}.tar.gz
-#cd assimp-%{version}
-#rm -rf test/models-nonbsd
-#cd ..
-#tar czf assimp-%{version}-free.tar.xz assimp-%{version}
-Source0:       assimp-%{version}-free.tar.xz
-
-Patch01:       CVE-2024-40724-Fix-out-of-bound-access-5651.patch
 
+Source0:       assimp-%{version}.tar.gz
 BuildRequires: gcc-c++ boost-devel cmake dos2unix irrlicht-devel irrXML-devel
 BuildRequires: doxygen poly2tri-devel gtest-devel pkgconfig(zziplib)
 BuildRequires: pkgconfig(zlib) pkgconfig(minizip) gmock-devel make
@@ -92,6 +84,9 @@ install -m 0644 port/PyAssimp/pyassimp/*.py %{buildroot}%{python3_sitelib}/pyass
 %{python3_sitelib}/pyassimp
 
 %changelog
+* Mon Jul 22 2024 xuguangmin <xuguangmin@kylinos.cn> - 5.4.2-1
+- update to 5.4.2
+
 * Mon Jul 22 2024 yinyongkang <yinyongkang@kylinos.cn> - 5.3.1-3
 - fix CVE-2024-40724