diff --git a/backports-3.11.4.gem b/backports-3.11.4.gem
deleted file mode 100644
index 3412bd8..0000000
Binary files a/backports-3.11.4.gem and /dev/null differ
diff --git a/backports-3.20.1.gem b/backports-3.20.1.gem
new file mode 100644
index 0000000..a2eb2f8
Binary files /dev/null and b/backports-3.20.1.gem differ
diff --git a/rubygem-backports.spec b/rubygem-backports.spec
index 65f3414..2d5b46b 100644
--- a/rubygem-backports.spec
+++ b/rubygem-backports.spec
@@ -1,6 +1,6 @@
 %global gem_name backports
 Name:                rubygem-%{gem_name}
-Version:             3.11.4
+Version:             3.20.1
 Release:             1
 Summary:             Backports of Ruby features for older Ruby
 License:             MIT
@@ -39,25 +39,22 @@ popd
 
 %files
 %dir %{gem_instdir}
-%exclude %{gem_instdir}/.*
 %license %{gem_instdir}/LICENSE.txt
-%{gem_instdir}/backports.gemspec
 %{gem_libdir}
 %exclude %{gem_cache}
 %{gem_spec}
 
 %files doc
 %doc %{gem_docdir}
-%doc %{gem_instdir}/CHANGELOG.rdoc
+%doc %{gem_instdir}/CHANGELOG.md
 %{gem_instdir}/Gemfile*
-%doc %{gem_instdir}/README.rdoc
-%{gem_instdir}/Rakefile
-%{gem_instdir}/default.mspec
-%{gem_instdir}/frozen_old_spec
-%{gem_instdir}/set_version
-%{gem_instdir}/spec
-%{gem_instdir}/test
+%doc %{gem_instdir}/README.md
+%doc %{gem_instdir}/SECURITY.md
+%{gem_instdir}/backports.gemspec
 
 %changelog
+* Mon Feb 14 2022 wangkai <wangkai385@huawei.com> - 3.20.1-1
+- update to 3.20.1 for fix build error
+
 * Wed Aug 19 2020 shenleizhao <shenleizhao@huawei.com> - 3.11.4-1
 - package init