diff --git a/lz4.spec b/lz4.spec
index 2339cae61b38c476bd79b89f8efbf5c1891df76e..07ac6074a3c0e29f4d7124c5a6051d5819b016c5 100644
--- a/lz4.spec
+++ b/lz4.spec
@@ -1,6 +1,6 @@
 Name:           lz4
 Version:        1.9.3
-Release:        3
+Release:        4
 Summary:        Extremely fast compression algorithm
 
 License:        GPLv2+ and BSD
@@ -38,7 +38,7 @@ applications using liblz4 library.
 cp %{_builddir}/%{name}-%{version}/lib/LICENSE %{_builddir}/%{name}-%{version}/LICENSE-lib
 
 %build
-export MOREFLAGS="-g"
+export MOREFLAGS="-g -D_FORTIFY_SOURCE=2 -O2"
 %make_build
 
 %install
@@ -69,6 +69,9 @@ export MOREFLAGS="-g"
 %{_mandir}/man1/unlz4.1*
 
 %changelog
+* Mon Jun 20 2022 renhongxun <renhongxun@h-partners.com> - 1.9.3-4
+- add _FORTIFY_SOURCE add enable check
+
 * Fri Jul 30 2021 chenyanpanHW <chenyanpan@huawei.com> - 1.9.3-3
 - DESC: delete -Sgit from %autosetup, and delete BuildRequires git