diff --git a/irrlicht-1.8.4.zip b/irrlicht-1.8.5.zip
similarity index 61%
rename from irrlicht-1.8.4.zip
rename to irrlicht-1.8.5.zip
index d1e4deb..b5eba40 100644
Binary files a/irrlicht-1.8.4.zip and b/irrlicht-1.8.5.zip differ
diff --git a/irrlicht.spec b/irrlicht.spec
index 376a9bb..03d97b0 100644
--- a/irrlicht.spec
+++ b/irrlicht.spec
@@ -1,16 +1,15 @@
 Name:           irrlicht
 Summary:        A high performance and free realtime 3D engine
-Version:        1.8.4
-Release:        12
+Version:        1.8.5
+Release:        1
 License:        zlib
 URL:            http://irrlicht.sourceforge.net/
-Source0:        http://downloads.sourceforge.net/irrlicht/irrlicht-1.8.4.zip
+Source0:        http://downloads.sourceforge.net/irrlicht/irrlicht-1.8.5.zip
 Patch0001:      irrlicht-1.8-optflags.patch
 Patch0002:      irrlicht-1.8-glext.patch
 Patch0003:      irrlicht18-libaesgm.patch
 Patch0004:      irrlicht-1.8-irrXML-shared-library.patch
 Patch0005:      irrlicht-1.8-fix-locale-decimal-points.patch
-Patch0006:      remove-sysctl.h.patch
 BuildRequires:  gcc-c++ libXxf86vm-devel mesa-libGL-devel mesa-libGLU-devel
 BuildRequires:  libjpeg-devel zlib-devel libaesgm-devel libpng-devel  bzip2-devel
 Provides:       irrlicht18 = %{version}-%{release}
@@ -23,7 +22,7 @@ written and usable in C++ and also available for .NET languages.
 %package devel
 Summary:        Development header files and libraries for irrlicht
 Requires:       irrlicht = %{version}-%{release} mesa-libGL-devel mesa-libGLU-devel
-Requires:       libjpeg-devel zlib-devel libpng-devel libXxf86vm-devel irrXML-devel = 1.8.4
+Requires:       libjpeg-devel zlib-devel libpng-devel libXxf86vm-devel irrXML-devel = 1.8.5
 Provides:       irrlicht18-devel = %{version}-%{release}
 Obsoletes:      irrlicht18-devel <= 1.8-0.4.svn3629
 
@@ -32,8 +31,8 @@ Development header files and libraries for irrlicht.
 
 %package -n irrXML
 Summary:        Simple and fast XML parser for C++
-Version:        1.8.4
-Provides:       irrXML18 = 1.8.4-%{release}
+Version:        1.8.5
+Provides:       irrXML18 = 1.8.5-%{release}
 Obsoletes:      irrXML18 <= 1.8-0.4.svn3629
 
 %description -n irrXML
@@ -41,9 +40,9 @@ This package provides a simple and fast open source xml parser for C++.
 
 %package -n irrXML-devel
 Summary:        Development header files and libraries for irrXML
-Version:        1.8.4
-Requires:       irrXML = 1.8.4-%{release}
-Provides:       irrXML18-devel = 1.8.4-%{release}
+Version:        1.8.5
+Requires:       irrXML = 1.8.5-%{release}
+Provides:       irrXML18-devel = 1.8.5-%{release}
 Obsoletes:      irrXML18-devel <= 1.8-0.4.svn3629
 
 %description -n irrXML-devel
@@ -71,8 +70,8 @@ install -d %{buildroot}%{_includedir}/irrlicht
 make -C source/Irrlicht INSTALL_DIR=%{buildroot}%{_libdir} install
 cp -a include/*.h %{buildroot}%{_includedir}/irrlicht/
 pushd %{buildroot}%{_libdir}
-ln -s libIrrlicht.so.1.8.4 libIrrlicht.so.1
-ln -s libIrrXML.so.1.8.4 libIrrXML.so.1
+ln -s libIrrlicht.so.1.8.5 libIrrlicht.so.1
+ln -s libIrrXML.so.1.8.5 libIrrXML.so.1
 popd
 
 %post
@@ -104,6 +103,9 @@ popd
 %{_includedir}/irrlicht/{fast_atof.h,heapsort.h,irrArray.h,irrString.h,irrTypes.h,irrXML.h}
 
 %changelog
+* Tue Oct 17 2023 wulei <wu_lei@hoperun.com> - 1.8.5-1
+- Update to 1.8.5
+
 * Sat Jun 26 2021 wangyue<wangyue92@huawei.com> - 1.8.4-12
 - Remove sysctl.h to fix build error
 
diff --git a/remove-sysctl.h.patch b/remove-sysctl.h.patch
deleted file mode 100644
index 5094d8a..0000000
--- a/remove-sysctl.h.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From 5382142d37730f6758753b758c91e257ffd5892c Mon Sep 17 00:00:00 2001
-From: Romain Naour <romain.naour@gmail.com>
-Date: Sun, 9 Apr 2017 22:20:19 +0200
-Subject: [PATCH] remove sys/sysctl.h
-
-With musl irrlicht doesn't build due to missing sys/sysctl.h
-
-fatal error: sys/sysctl.h: No such file or directory
-
-From [1]
-"sysctl does not work, and NEVER worked. using it is bogus.
-it was a bogus experimental syscall that was deprecated before
-it was ever used (basically, a broken binary version of
-/proc/sys, without any stability between kernel versions for
-what the binary constants meant)."
-
-[1] https://devsonacid.wordpress.com/tag/musl/
-
-Signed-off-by: Romain Naour <romain.naour@gmail.com>
-
-diff -ruN irrlicht-1.8.4-bak/source/Irrlicht/COSOperator.cpp irrlicht-1.8.4/source/Irrlicht/COSOperator.cpp
---- irrlicht-1.8.4-bak/source/Irrlicht/COSOperator.cpp	2012-11-04 02:07:52.000000000 +0800
-+++ irrlicht-1.8.4/source/Irrlicht/COSOperator.cpp	2021-06-26 15:26:03.935312943 +0800
-@@ -13,7 +13,6 @@
- #include <unistd.h>
- #ifndef _IRR_SOLARIS_PLATFORM_
- #include <sys/types.h>
--#include <sys/sysctl.h>
- #endif
- #endif
-