diff --git a/userspace-rcu.spec b/userspace-rcu.spec
index 61731a5..20a61af 100644
--- a/userspace-rcu.spec
+++ b/userspace-rcu.spec
@@ -1,12 +1,12 @@
 Name:           userspace-rcu
 Version:        0.13.0
-Release:        2
+Release:        3
 Summary:        Userspace read-copy-update library
 License:        LGPLv2+
 URL:            http://liburcu.org
 Source0:        http://lttng.org/files/urcu/%{name}-%{version}.tar.bz2
 
-BuildRequires:  pkgconfig perl-Test-Harness autoconf automake libtool userspace-rcu-devel
+BuildRequires:  pkgconfig perl-Test-Harness autoconf automake libtool
 
 %description
 liburcu is a LGPLv2.1 userspace RCU (read-copy-update) library. This data
@@ -36,7 +36,6 @@ make %{?_smp_mflags} V=1
 %install
 %make_install
 
-cp -a %{_libdir}/liburcu*.so.6* %{buildroot}%{_libdir}
 
 %check
 make check
@@ -66,6 +65,9 @@ make check
 
 
 %changelog
+* Mon Mar 28 2022 zhouwenpei <zhouwenpei1@h-partners.com> - 0.13.0-3
+- delete old so file
+
 * Thu Dec 16 2021 zhouwenpei <zhouwenpei1@huawei.com> - 0.13.0-2
 - fix build error