diff --git a/ruby.spec b/ruby.spec
index f83c45af74a9da967aa3fa9270209a8524b8c8ae..a0f974ea6fe6a5a432ca9053598d2432fedfd8ca 100644
--- a/ruby.spec
+++ b/ruby.spec
@@ -1,6 +1,6 @@
 # PLEASE ALWAYS bump release even when upgrading version, as this package is
 # producing rubygem packages with different versions other than main package.
-%define anolis_release 4
+%define anolis_release 5
 %global major_version 3
 %global minor_version 1
 %global teeny_version 3
@@ -199,7 +199,6 @@ BuildRequires: procps
 # Required to test hardening.
 %{?with_hardening_test:BuildRequires: %{_bindir}/checksec}
 %{?with_hostname:BuildRequires: %{_bindir}/hostname}
-BuildRequires: multilib-rpm-config
 BuildRequires: gcc
 BuildRequires: make
 BuildRequires: zlib-devel
@@ -691,13 +690,6 @@ rm -rf %{buildroot}
 
 # TODO: Regenerate RBS parser in lib/rbs/parser.rb
 
-# Rename ruby/config.h to ruby/config-<arch>.h to avoid file conflicts on
-# multilib systems and install config.h wrapper
-%multilib_fix_c_header --file %{_includedir}/%{name}/config.h
-# TODO: The correct patch should be %%{_includedir}/%%{name}/rb_mjit_min_header-%%{ruby_version}.h
-# https://bugs.ruby-lang.org/issues/15425
-%multilib_fix_c_header --file %{_includedir}/rb_mjit_min_header-%{ruby_version}.h
-
 # Rename the ruby executable. It is replaced by RubyPick.
 %{?with_rubypick:mv %{buildroot}%{_bindir}/%{name}{,-mri}}
 
@@ -1521,6 +1513,9 @@ DISABLE_TESTS="$DISABLE_TESTS -n !/Fiddle::TestFunction#test_argument_count/"
 
 
 %changelog
+* Tue Mar 28 2023 Chunmei Xu <xuchunmei@linux.alibaba.com> - 3.1.3-5
+- remove multilib related codes
+
 * Thu Mar 9 2023 Chunmei Xu <xuchunmei@linux.alibaba.com> - 3.1.3-4
 - use system-rpm-config as Requires