diff --git a/backport-CVE-2020-12762.patch b/backport-CVE-2020-12762.patch
deleted file mode 100644
index e4922cdfe40ac911c157e565fcef80992d325633..0000000000000000000000000000000000000000
--- a/backport-CVE-2020-12762.patch
+++ /dev/null
@@ -1,66 +0,0 @@
-From f51fcd59a8bbeb60eaf8ae0e398556be2fa3317a Mon Sep 17 00:00:00 2001
-From: Wang Haitao <wanghaitao.ouyang@foxmail.com>
-Date: Tue, 14 Mar 2023 22:25:54 +0800
-Subject: [PATCH] Fix CVE-2020-12762
-
-reference: https://github.com/json-c/json-c/pull/592/files
-
-I reproduce this CVE using the code from https://github.com/json-c/json-c/pull/592
-
-And it fix it and no more segmentation fault
----
- printbuf.c | 20 +++++++++++++++++---
- 1 file changed, 17 insertions(+), 3 deletions(-)
-
-diff --git a/printbuf.c b/printbuf.c
-index e9cde11..b02a363 100644
---- a/printbuf.c
-+++ b/printbuf.c
-@@ -13,6 +13,7 @@
- 
- #include "config.h"
- 
-+#include <limits.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
-@@ -68,9 +69,16 @@ static int printbuf_extend(struct printbuf *p, int min_size)
- 	if (p->size >= min_size)
- 		return 0;
- 
--	new_size = p->size * 2;
--	if (new_size < min_size + 8)
--		new_size =  min_size + 8;
-+	/* Prevent signed integer overflows with large buffers. */
-+	if (min_size > INT_MAX - 8)
-+		return -1;
-+	if (p->size > INT_MAX / 2)
-+		new_size = min_size + 8;
-+	else {
-+		new_size = p->size * 2;
-+		if (new_size < min_size + 8)
-+			new_size = min_size + 8;
-+	}
- #ifdef PRINTBUF_DEBUG
- 	MC_DEBUG("printbuf_memappend: realloc "
- 	  "bpos=%d min_size=%d old_size=%d new_size=%d\n",
-@@ -85,6 +93,9 @@ static int printbuf_extend(struct printbuf *p, int min_size)
- 
- int printbuf_memappend(struct printbuf *p, const char *buf, int size)
- {
-+	/* Prevent signed integer overflows with large buffers. */
-+	if (size > INT_MAX - p->bpos - 1)
-+		return -1;
- 	if (p->size <= p->bpos + size + 1) {
- 		if (printbuf_extend(p, p->bpos + size + 1) < 0)
- 			return -1;
-@@ -136,6 +147,9 @@ int printbuf_memset(struct printbuf *pb, int offset, int charvalue, int len)
- 
- 	if (offset == -1)
- 		offset = pb->bpos;
-+	/* Prevent signed integer overflows with large buffers. */
-+	if (len > INT_MAX - offset)
-+		return -1;
- 	size_needed = offset + len;
- 	if (pb->size < size_needed)
- 	{
diff --git a/libfastjson-0.99.9.tar.gz b/libfastjson-0.99.9.tar.gz
deleted file mode 100644
index 045b0c3e958927843699dd7875e5da8f2ff2b501..0000000000000000000000000000000000000000
Binary files a/libfastjson-0.99.9.tar.gz and /dev/null differ
diff --git a/libfastjson-1.2304.0.tar.gz b/libfastjson-1.2304.0.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..f2e1fa3dac84934b422dbbf16ceb7832117c7ae8
Binary files /dev/null and b/libfastjson-1.2304.0.tar.gz differ
diff --git a/libfastjson.spec b/libfastjson.spec
index f05511a248dabc684e0671b04b7ee462c394e99b..403c10f51e7399d86ebfd1044f2996bf3b1ad65a 100644
--- a/libfastjson.spec
+++ b/libfastjson.spec
@@ -1,13 +1,11 @@
 Name:		libfastjson
-Version:	0.99.9
-Release:	3
+Version:	1.2304.0
+Release:	1
 Summary:	JSON-C - A JSON implementation in C
 License:	MIT
 URL:		https://github.com/rsyslog/libfastjson
 Source0:	http://download.rsyslog.com/%{name}/%{name}-%{version}.tar.gz
 
-Patch1:        backport-CVE-2020-12762.patch
-
 BuildRequires: autoconf automake libtool
 
 %description
@@ -58,6 +56,9 @@ make V=1 check
 %{_libdir}/pkgconfig/libfastjson.pc
 
 %changelog
+* Mon Jan 29 2024 gengqihu <gengqihu2@h-partners.com> - 1.2304.0-1
+- update to 1.2304.0
+
 * Tue Mar 28 2023 shixuantong <shixuantong1@huawei.com> - 0.99.9-3
 - fix CVE-2020-12762