diff --git a/TECkit_2_5_1-includes.patch b/TECkit_2_5_1-includes.patch
deleted file mode 100644
index 3787f2c..0000000
--- a/TECkit_2_5_1-includes.patch
+++ /dev/null
@@ -1,11 +0,0 @@
-diff -ru TECkit_2_5_1.orig/source/Compiler.cpp TECkit_2_5_1/source/Compiler.cpp
---- TECkit_2_5_1.orig/source/Compiler.cpp	2009-03-05 10:29:22.000000000 +0000
-+++ TECkit_2_5_1/source/Compiler.cpp	2009-03-05 10:29:50.000000000 +0000
-@@ -33,6 +33,7 @@
- #include <iomanip>
- #include <algorithm>
- #include <cstring>
-+#include <stdio.h>
- 
- #include "zlib.h"
- 
diff --git a/teckit-2.5.12.tar.gz b/teckit-2.5.12.tar.gz
new file mode 100644
index 0000000..5f6267a
Binary files /dev/null and b/teckit-2.5.12.tar.gz differ
diff --git a/teckit-2.5.9.tar.gz b/teckit-2.5.9.tar.gz
deleted file mode 100644
index c53de58..0000000
Binary files a/teckit-2.5.9.tar.gz and /dev/null differ
diff --git a/teckit.spec b/teckit.spec
index 93e3334..561530b 100644
--- a/teckit.spec
+++ b/teckit.spec
@@ -1,12 +1,11 @@
 Name:           teckit
-Version:        2.5.9
+Version:        2.5.12
 Release:        1
 Summary:        A library and compiler for mapping and transposition
 License:        LGPLv2+ or CPL
 URL:            https://github.com/silnrsi/teckit
 Source0:        https://github.com/silnrsi/teckit/releases/download/v%{version}/teckit-%{version}.tar.gz
 BuildRequires:  expat-devel zlib-devel libtool gcc-c++
-Patch0000:      TECkit_2_5_1-includes.patch
 %description
 Resort to this library dedicated to encoding conversions and make sure
 the development and testing of mapping tables raises no issues whatsoever.
@@ -27,10 +26,21 @@ Help documents for teckit package.
 %prep
 %autosetup -n %{name}-%{version} -p1
 
-rm -r zlib*
+rm -r zlib-*/*.{c,h} SFconv/expat
 
 %build
-%configure --disable-static
+autoreconf -fi
+%configure \
+    --disable-debug \
+    --disable-final \
+    --without-old-lib-names \
+    --disable-profile \
+    --disable-profilefn \
+    --enable-shared \
+    --disable-static \
+    --with-system-zlib \
+    --disable-tetex-build
+
 %make_build V=1
 
 %install
@@ -49,8 +59,8 @@ make check
 %postun devel -p /sbin/ldconfig
 
 %files
-%license COPYING AUTHORS
-%license license/{LICENSING.txt,License_CPLv05.txt,License_LGPLv21.txt}
+%license license/*            
+%doc AUTHORS NEWS README
 %{_bindir}/{sfconv,teckit_compile,txtconv}
 %{_libdir}/{libTECkit.so.*,libTECkit_Compiler.so.*}
 
@@ -64,6 +74,9 @@ make check
 %{_mandir}/man1/*
 
 %changelog
+* Sat Sep 16 2023 liyanan <thistleslyn@163.com> - 2.5.12-1
+- Update to 2.5.12
+
 * Thu Jun 16 2022 SimpleUpdate Robot <tc@openeuler.org> - 2.5.9-1
 - Upgrade to version 2.5.9