diff --git a/argon2.spec b/argon2.spec
index afd5ee85a82eb378c60a334dfa88123706762157..57e9f23bda509a38c2689787b2d0951a19faeed9 100644
--- a/argon2.spec
+++ b/argon2.spec
@@ -1,12 +1,11 @@
 Name:          argon2
 Version:       20190702
-Release:       1
+Release:       2
 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
 BuildRequires: gcc
-BuildRequires: libargon2
 Requires:      libargon2%{?_isa} = %{version}-%{release}
 
 %description
@@ -81,8 +80,6 @@ install -Dpm 755 libargon2.so.* %{buildroot}%{_libdir}/
 install -Dpm 644 libargon2.pc %{buildroot}%{_libdir}/pkgconfig/libargon2.pc
 install -Dpm 644 man/argon2.1 %{buildroot}%{_mandir}/man1/argon2.1
 
-cp -p %{_libdir}/libargon2.so.0  %{buildroot}%{_libdir}
-
 %check
 make test
 
@@ -115,6 +112,9 @@ make test
 %{_mandir}/man1/*
 
 %changelog
+* Tue Apr 12 2022 yixiangzhike <yixiangzhike007@163.com> - 20190702-2
+- delete the old version .so file
+
 * Tue Sep 1 2020 zhangxingliang <zhangxingliang3@huawei.com> - 20190702-1
 - update to 20190702