diff --git a/argon2.spec b/argon2.spec
index c8094f4..04a097d 100644
--- a/argon2.spec
+++ b/argon2.spec
@@ -1,12 +1,10 @@
-%define make %__make OPTFLAGS="%{optflags}" LIBRARY_REL=%{_lib}
-
 Name:          argon2
-Version:       20190702
-Release:       2
+Version:       20161029
+Release:       10
 Summary:       A password-hashing tool
 License:       Public Domain or ASL 2.0
 URL:           https://github.com/P-H-C/phc-winner-argon2
-Source0:       https://github.com/P-H-C/phc-winner-argon2/archive/62358ba2123abd17fccf2a108a301d4b52c01a7c/phc-winner-argon2-20190702-62358ba.tar.gz
+Source0:       https://github.com/P-H-C/phc-winner-argon2/archive/1c4fc41f81f358283755eea88d4ecd05e43b7fd3/phc-winner-argon2-20161029-1c4fc41.tar.gz
 
 BuildRequires: gcc
 Requires:      libargon2%{?_isa} = %{version}-%{release}
@@ -53,20 +51,31 @@ This package contains dynamic library for argon2
 %package_help
 
 %prep
-%setup -qn phc-winner-argon2-62358ba2123abd17fccf2a108a301d4b52c01a7c
+%setup -qn phc-winner-argon2-1c4fc41f81f358283755eea88d4ecd05e43b7fd3
+
+if ! grep -q 'soname,libargon2.so.*' Makefile; then
+  : soname have changed
+  grep soname Makefile
+  exit 1
+fi
+
+sed -e 's:lib/@HOST_MULTIARCH@:%{_lib}:;s/@UPSTREAM_VER@/%{version}/' -i libargon2.pc
 
 sed -e '/^CFLAGS/s:^CFLAGS:LDFLAGS=%{build_ldflags}\nCFLAGS:' \
-    -e 's:-O3 -Wall -g:%{optflags}:' \
+    -e 's:-O3 -Wall:%{optflags}:' \
+    -e '/^LIBRARY_REL/s:lib:%{_lib}:' \
     -e 's:-march=\$(OPTTARGET) :${CFLAGS} :' \
     -e 's:CFLAGS += -march=\$(OPTTARGET)::' \
     -i Makefile
 
 %build
-%make %{?_smp_mflags}
+make -j1
 
 %install
-%make DESTDIR=%{buildroot} install
+%make_install
 %delete_la_and_a
+
+install -Dpm 644 libargon2.pc %{buildroot}%{_libdir}/pkgconfig/libargon2.pc
 install -Dpm 644 man/argon2.1 %{buildroot}%{_mandir}/man1/argon2.1
 
 mv %{buildroot}%{_libdir}/libargon2.so %{buildroot}%{_libdir}/libargon2.so.0
@@ -104,6 +113,9 @@ make test
 %{_mandir}/man1/*
 
 %changelog
+* Mon Jul 6 2020 Liquor <lirui130@huawei.com> - 20161029-10
+- revert "update argon2 to 20190702" 
+
 * Sat Jul 4 2020 Liquor <lirui130@huawei.com> - 20190702-2
 - add libargon2.so.0
 
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