diff --git a/0004-add-fstack-protector-strong.patch b/0004-add-fstack-protector-strong.patch
new file mode 100644
index 0000000000000000000000000000000000000000..b687a137163f65ff81c3e4497561e29a68a77ca5
--- /dev/null
+++ b/0004-add-fstack-protector-strong.patch
@@ -0,0 +1,25 @@
+From 77bbe25994a890408ec48969854d9f038a3e25cc Mon Sep 17 00:00:00 2001
+From: liangdong <liangdong10@huawei.com>
+Date: Wed, 18 Mar 2020 12:11:15 +0800
+Subject: [PATCH] add fstack-protector-strong
+
+---
+ configure | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/configure b/configure
+index 1316b3c..4b1782a 100755
+--- a/configure
++++ b/configure
+@@ -474,7 +474,7 @@ case "$ccfamily" in
+ -fno-builtin-memcmp";
+     internal_cflags="$gcc_warnings";;
+   gcc-*)
+-    common_cflags="-O2 -fno-strict-aliasing -fwrapv";
++    common_cflags="-O2 -fno-strict-aliasing -fwrapv -fstack-protector-strong";
+     internal_cflags="$gcc_warnings";;
+   *)
+     common_cflags="-O";;
+-- 
+2.19.1
+
diff --git a/ocaml.spec b/ocaml.spec
index e461591343df8430af8c374002cab466f498e277..3bee6c33ce601844ea2fcc031709ddd471d18323 100644
--- a/ocaml.spec
+++ b/ocaml.spec
@@ -1,6 +1,6 @@
 Name:           ocaml
 Version:        4.07.0
-Release:        6 
+Release:        7
 Summary:        OCaml compiler and programming environment
 License:        QPL and (LGPLv2+ with exceptions)
 URL:            http://www.ocaml.org
@@ -8,6 +8,7 @@ Source0:        http://caml.inria.fr/pub/distrib/ocaml-4.07/ocaml-%{version}.tar
 
 Patch0002:      0002-ocamlbyteinfo-ocamlplugininfo-Useful-utilities-from-.patch
 Patch0003:      0003-configure-Allow-user-defined-C-compiler-flags.patch
+Patch0004:      0004-add-fstack-protector-strong.patch
 
 BuildRequires:  gcc binutils-devel ncurses-devel gdbm-devel emacs gawk perl-interpreter
 BuildRequires:  util-linux libICE-devel libSM-devel libX11-devel libXaw-devel libXext-devel
@@ -237,6 +238,9 @@ find %{buildroot} \( -name '*.cmt' -o -name '*.cmti' \) -a -delete
 %{_mandir}/man3/*
 
 %changelog
+* Wed Mar 18 2020 liangdong <liangdong10@huawei.com> - 4.07.0-7
+- add fstack protector strong
+
 * Thu Jan 22 2020 yanzhihua <yanzhihua4@huawei.com> - 4.07.0-6
 - modify patching method