diff --git a/nettle.spec b/nettle.spec
index b2b1913de42cddc5fa610899c9744abb877d84f7..989ea540bc148bb74346f02bac97a89a1f029e70 100644
--- a/nettle.spec
+++ b/nettle.spec
@@ -1,6 +1,6 @@
 Name:           nettle
 Version:        3.6
-Release:        3
+Release:        4
 Summary:        A low-level cryptographic library
 License:        LGPLv3+ or GPLv2+
 URL:            https://www.lysator.liu.se/~nisse/nettle/
@@ -18,7 +18,6 @@ Patch6006:      backport-0007-CVE-2021-20305.patch
 Patch6007:      backport-CVE-2021-3580.patch
 
 BuildRequires:  automake autoconf fipscheck gcc gettext-devel gmp-devel libtool m4
-BuildRequires:  nettle
 
 %description
 Nettle is a cryptographic library designed to fit any context:
@@ -50,8 +49,6 @@ autoreconf -ifv
 %make_install
 make install-shared
 install -D -p -m0644 nettle.info "$RPM_BUILD_ROOT%{_infodir}/nettle.info"
-cp -p %{_libdir}/libnettle.so.6.*  $RPM_BUILD_ROOT%{_libdir}/
-cp -p %{_libdir}/libhogweed.so.4.*  $RPM_BUILD_ROOT%{_libdir}/
 
 chmod 0755 $RPM_BUILD_ROOT%{_libdir}/libnettle.so.8.*
 chmod 0755 $RPM_BUILD_ROOT%{_libdir}/libhogweed.so.6.*
@@ -64,8 +61,6 @@ make check
 %doc AUTHORS descore.README nettle.pdf
 %license COPYINGv2 COPYINGv3 COPYING.LESSERv3
 %{_infodir}/nettle.info.gz
-%{_libdir}/libnettle.so.6*
-%{_libdir}/libhogweed.so.4*
 %exclude %{_infodir}/dir
 %{_libdir}/libnettle.so.8*
 %{_libdir}/libhogweed.so.6*
@@ -87,6 +82,12 @@ make check
 %ldconfig_scriptlets
 
 %changelog
+* Mon Sep 05 2022 gaihuiying <eaglegai@163.com> - 3.6-4
+- Type:bugfix
+- CVE:NA
+- SUG:NA
+- DESC:delete useless files
+
 * Mon Aug 16 2021 gaihuiying <gaihuiying1@huawei.com> - 3.6-3
 - Type:CVE
 - CVE:CVE-2021-3580