diff --git a/mpich.spec b/mpich.spec
index 5adf6552e247209e88042a978da740ca11a26cc0..65761f5747fa40215fce3e97887495cca82e7480 100644
--- a/mpich.spec
+++ b/mpich.spec
@@ -1,7 +1,7 @@
 Summary:        A high-performance implementation of MPI
 Name:           mpich
 Version:        4.0.3
-Release:        4
+Release:        5
 License:        MIT
 URL:            http://www.mpich.org/
 Source0:        http://www.mpich.org/static/downloads/%{version}/mpich-%{version}.tar.gz
@@ -66,6 +66,7 @@ mpich support for Python 3.
 %{!?opt_fc_fflags: %global opt_fc_fflags %{optflags}}
 %{!?opt_f77_fflags: %global opt_f77_fflags %{optflags}}
 
+%global _hardening_clang_cflags %{nil}
 %ifarch aarch64 loongarch64 riscv64
 %global m_option ""
 %else
@@ -201,6 +202,9 @@ make check V=1
 %{python3_sitearch}/mpich.pth
 
 %changelog
+* Mon Oct 16 2023 misaka00251 <yuzengqi@huawei.com> - 4.0.3-5
+- add clang compile support
+
 * Thu Jul 27 2023 misaka00251 <liuxin@iscas.ac.cn> - 4.0.3-4
 - Fix build error on riscv64