diff --git a/v5.2.5.tar.gz b/assimp-5.3.1-free.tar.xz
similarity index 63%
rename from v5.2.5.tar.gz
rename to assimp-5.3.1-free.tar.xz
index 9080d11958bb3a73224a8243d7df66f01bb2bbb4..81687a33f48f96dc2f183f051f2273c62e4dc221 100644
Binary files a/v5.2.5.tar.gz and b/assimp-5.3.1-free.tar.xz differ
diff --git a/assimp.spec b/assimp.spec
index bbfdafa5fb102e0739f59a13c58821988e985d8b..6f03414d66a885c1a269c2ee6cb0320a46bfa956 100644
--- a/assimp.spec
+++ b/assimp.spec
@@ -1,10 +1,16 @@
 Name:          assimp
-Version:       5.2.5
+Version:       5.3.1
 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/
-Source0:       https://github.com/assimp/assimp/archive/v%{version}.tar.gz
+#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
 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
@@ -46,10 +52,10 @@ Assimp help doc.
 
 %prep
 %autosetup -n assimp-%{version} -p1
-sed -i '/Werror/d' code/CMakeLists.txt
 
 %build
-%cmake
+%cmake -DASSIMP_BUILD_ZLIB=OFF 
+       
 %make_build
 
 %install
@@ -81,6 +87,9 @@ install -m 0644 port/PyAssimp/pyassimp/*.py %{buildroot}%{python3_sitelib}/pyass
 %{python3_sitelib}/pyassimp
 
 %changelog
+* Wed Oct 18 2023 chenyaqiang <chengyaqiang@huawei.com> - 5.3.1-1
+- update to 5.3.1
+
 * Sat Feb 04 2023 wenchaofan <349464272@qq.com> - 5.2.5-1
 - Update to 5.2.5 version