diff --git a/0001-sync-Fix-c-20-compilation-problem-for-clang10-1228.patch b/0001-sync-Fix-c-20-compilation-problem-for-clang10-1228.patch
new file mode 100644
index 0000000000000000000000000000000000000000..a5107b54dadfb08f5aa1d6aa2cf272bb06d4ee06
--- /dev/null
+++ b/0001-sync-Fix-c-20-compilation-problem-for-clang10-1228.patch
@@ -0,0 +1,32 @@
+From a73d35d61b5a0f41c30b85a4b00a7f10786e5a5d Mon Sep 17 00:00:00 2001
+From: zhangzhangxin <zhangxin1@xfusion.com>
+Date: Tue, 25 Apr 2023 20:29:33 +0800
+Subject: [PATCH] sync:Fix c++20 compilation problem for clang10 #1228
+
+Signed-off-by: zhangzhangxin <zhangxin1@xfusion.com>
+---
+ jsoncpp-1.9.4/include/json/allocator.h | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/jsoncpp-1.9.4/include/json/allocator.h b/jsoncpp-1.9.4/include/json/allocator.h
+index 0f5c224..95ef8a5 100644
+--- a/jsoncpp-1.9.4/include/json/allocator.h
++++ b/jsoncpp-1.9.4/include/json/allocator.h
+@@ -35,11 +35,10 @@ public:
+    * Release memory which was allocated for N items at pointer P.
+    *
+    * The memory block is filled with zeroes before being released.
+-   * The pointer argument is tagged as "volatile" to prevent the
+-   * compiler optimizing out this critical step.
+    */
+-  void deallocate(volatile pointer p, size_type n) {
+-    std::memset(p, 0, n * sizeof(T));
++  void deallocate(pointer p, size_type n) {
++    // memset_s is used because memset may be optimized away by the compiler
++    memset_s(p, n * sizeof(T), 0, n * sizeof(T));
+     // free using "global operator delete"
+     ::operator delete(p);
+   }
+-- 
+2.40.0.windows.1
+
diff --git a/jsoncpp.spec b/jsoncpp.spec
index b8af95796b93dbcf65611df26e5068ef9345d176..79fe06014325f6ae31bfec76263aca913055b826 100644
--- a/jsoncpp.spec
+++ b/jsoncpp.spec
@@ -1,11 +1,12 @@
 Name:           jsoncpp
 Version:        1.9.4
-Release:        1
+Release:        2
 Summary:        JSON C++ library
 License:        Public Domain or MIT
 URL:            https://github.com/open-source-parsers/jsoncpp
 Source0:        https://github.com/open-source-parsers/jsoncpp/archive/%{version}/%{name}-%{version}.tar.gz
 BuildRequires:  gcc-c++ cmake >= 3.1 python3-devel
+Patch0:         0001-sync-Fix-c-20-compilation-problem-for-clang10-1228.patch
 
 %description
 JsonCpp is a C++ library that allows manipulating JSON values,
@@ -88,6 +89,9 @@ hardlink -cfv %{buildroot}%{_docdir}/%{name}
 
 
 %changelog
+* Tue Apr 25 2023 zhangxin <zhangxin1@xfusion.com> - 1.9.4-2
+- sync:Fix c++20 compilation problem for clang10
+
 * Wed Feb 3 2021 liudabo <liudabo1@huawei.com> - 1.9.4-1
 - upgrade version to 1.9.4