diff --git a/rubygem-nokogiri-1.18.10-minitest6.patch b/rubygem-nokogiri-1.18.10-minitest6.patch
deleted file mode 100644
index f2e2b8f..0000000
--- a/rubygem-nokogiri-1.18.10-minitest6.patch
+++ /dev/null
@@ -1,11 +0,0 @@
-diff -urp '--exclude=*~' nokogiri-1.18.10.orig/test/helper.rb nokogiri-1.18.10/test/helper.rb
---- nokogiri-1.18.10.orig/test/helper.rb	2025-12-24 12:29:06.569389292 +0900
-+++ nokogiri-1.18.10/test/helper.rb	2025-12-24 12:39:48.443826371 +0900
-@@ -41,6 +41,7 @@ warn
- 
- require "minitest/autorun"
- require "minitest/benchmark"
-+require "minitest/mock"
- 
- if !Nokogiri.jruby? && ENV["NCPU"].to_i > 1
-   require "minitest/parallel_fork"
diff --git a/rubygem-nokogiri.spec b/rubygem-nokogiri.spec
index b28fa64..700765b 100644
--- a/rubygem-nokogiri.spec
+++ b/rubygem-nokogiri.spec
@@ -1,7 +1,7 @@
-%global	mainver		1.19.0
+%global	mainver		1.18.10
 #%%global	prever		.rc4
 
-%global	baserelease		2
+%global	baserelease		1
 %global	prerpmver		%(echo "%{?prever}" | sed -e 's|\\.||g')
 
 %global	gem_name	nokogiri
@@ -34,7 +34,6 @@ BuildRequires:	ruby(rubygems)
 ##
 ## For %%check
 BuildRequires:	rubygem(minitest)
-BuildRequires:	rubygem(minitest-mock)
 %if !0%{?rhel}
 # For test/xml/test_document_encoding.rb
 # Drop rubygem(rubyzip) build dependency in RHEL
@@ -276,15 +275,6 @@ popd
 %doc	%{gem_dir}/doc/%{gem_name}-%{mainver}%{?prever}/
 
 %changelog
-* Thu Jan 08 2026 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.19.0-2
-- Rebuild for https://fedoraproject.org/wiki/Changes/Ruby_4.0
-
-* Tue Dec 30 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.19.0-1
-- 1.19.0
-
-* Wed Dec 24 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.18.10-2
-- Handle minitest 6 compatibility
-
 * Mon Sep 15 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.18.10-1
 - 1.18.10
 
diff --git a/sources b/sources
index 52222fb..2c3b067 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (rubygem-nokogiri-1.19.0-full.tar.gz) = 29dd894b176857d55eb5e670f50e69762e74c0a13e6949030af17e3c84b65f9dfe0087210b84a7c77749d3d1a4a33292d62f7005003745e8f087d822ee64f4b1
-SHA512 (nokogiri-1.19.0.gem) = d9326a2e60b6ea3152c5f9d53df738610f18ca57cffcd3bf2f8b07a2b08b30085d0fce2ca8206279ad6a0f1a613e9e76821c09aef45cf5e5b2d00ff766734872
+SHA512 (nokogiri-1.18.10.gem) = 82d7cefeedb3328cc427ce6eb6394ef07d18c6b5a4d495e3f3c0270320dcd64904b1229e427780fda48b8877bfae5043df000fd850bb303ed09735d3ba63f974
+SHA512 (rubygem-nokogiri-1.18.10-full.tar.gz) = a230b8da7ad7eb01f496a87b89c0e78799cccc7726e7d8ee8ee09841c82d819bf269700f98effce69ff2b8d2926de085cfda8e350c7d77a463ea25d875f12cf8