diff --git a/gio2-create-missing-test-files.sh b/gio2-create-missing-test-files.sh
index 66b021d..830e659 100644
--- a/gio2-create-missing-test-files.sh
+++ b/gio2-create-missing-test-files.sh
@@ -22,7 +22,7 @@ pushd $TMPDIR
 git clone https://github.com/ruby-gnome2/ruby-gnome2.git
 cd ruby-gnome2/
 
-git reset --hard $VERSION || true
+git reset --hard $VERSION
 tar czf $CURDIR/gio2-${VERSION}-test-missing-files.tar.gz gio2/test/fixture/
 
 popd
diff --git a/rubygem-gio2.spec b/rubygem-gio2.spec
index 322ef6d..f06dc89 100644
--- a/rubygem-gio2.spec
+++ b/rubygem-gio2.spec
@@ -9,8 +9,8 @@
 
 Summary:	Ruby binding of gio-2.0.x
 Name:		rubygem-%{gem_name}
-Version:	4.3.4
-Release:	2%{?dist}
+Version:	4.2.0
+Release:	1%{?dist}
 # SPDX confirmed
 # LGPL-2.1-or-later: gemspec
 License:	LGPL-2.1-or-later
@@ -30,7 +30,6 @@ BuildRequires:	rubygem-gobject-introspection-devel >= %{glibminver}
 BuildRequires:	ruby-devel
 # For Patch0:
 #BuildRequires:	rubygem(rake-compiler)
-BuildRequires:	rubygem(fiddle)
 BuildRequires:	rubygem(test-unit)
 BuildRequires:	rubygem(test-unit-notify)
 BuildRequires:	rubygem(rake)
@@ -73,12 +72,7 @@ rubygem-%{gem_name}
 mv ../%{gem_name}-%{version}.gemspec .
 
 # Allow ruby-gnome2 no less than ones
-sed -i -e 's|= 4\.3\.4|>= 4.3.4|' %{gem_name}-%{version}.gemspec
-
-# Remove unneeded rake runtime dependency
-sed -i %{gem_name}-%{version}.gemspec \
-	-e '\@add_runtime_dependency.*rake@d'
-
+sed -i -e 's|= 4\.2\.0|>= 4.2.0|' %{gem_name}-%{version}.gemspec
 # fiddle is in default gem
 sed -i -e '\@dependency.*fiddle@d' %{gem_name}-%{version}.gemspec
 
@@ -183,72 +177,6 @@ popd
 %exclude	%{gem_instdir}/test/
 
 %changelog
-* Thu Jan 08 2026 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.3.4-2
-- Rebuild for https://fedoraproject.org/wiki/Changes/Ruby_4.0
-
-* Sat Dec 06 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.3.4-1
-- 4.3.4
-
-* Sun Oct 26 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.3.3-2
-- Add fiddle for BR for ruby3_5
-
-* Mon Aug 18 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.3.3-1
-- 4.3.3
-
-* Sat Aug 16 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.3.2-1
-- 4.3.2
-
-* Fri Jul 25 2025 Fedora Release Engineering <releng@fedoraproject.org> - 4.3.0-2
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
-
-* Tue Jul 15 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.3.0-1
-- 4.3.0
-
-* Sat Mar 22 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.9-1
-- 4.2.9
-
-* Thu Mar 20 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.8-1
-- 4.2.8
-
-* Thu Jan 30 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.7-1
-- 4.2.7
-
-* Sun Jan 26 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.6-1
-- 4.2.6
-
-* Sat Jan 18 2025 Fedora Release Engineering <releng@fedoraproject.org> - 4.2.5-3
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
-
-* Tue Jan 07 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.5-2
-- Rebuild for https://fedoraproject.org/wiki/Changes/Ruby_3.4
-
-* Sun Dec 15 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.5-1
-- 4.2.5
-
-* Wed Sep 25 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.4-1
-- 4.2.4
-
-* Thu Sep 19 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.3-1
-- 4.2.3
-
-* Fri Jul 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 4.2.2-2
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
-
-* Tue Apr 02 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.2-1
-- 4.2.2
-
-* Fri Feb 23 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.1-1
-- 4.2.1
-
-* Fri Jan 26 2024 Fedora Release Engineering <releng@fedoraproject.org> - 4.2.0-4
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
-
-* Mon Jan 22 2024 Fedora Release Engineering <releng@fedoraproject.org> - 4.2.0-3
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
-
-* Wed Jan 03 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.0-2
-- Rebuild for https://fedoraproject.org/wiki/Changes/Ruby_3.3
-
 * Sat Aug 19 2023 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.0-1
 - 4.2.0
 
diff --git a/sources b/sources
index ed10028..6ca459d 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (gio2-4.3.4.gem) = 65851ee4b5e161b9af7b3f00d8599d88e6f58ecdd85f7440534cf308ae040914108db0291cfcf36bc7443514891c96dfa86bab264ba7b3cfa8ed29593166f09f
-SHA512 (gio2-4.3.4-test-missing-files.tar.gz) = bb06332232c8f2389e5bdb99c5a4b4da241c7d2ef851b1e4e5a491f3552b230adc1429d6d90574e6275c3103f7fab8c11a63be4ec9ff36302ba0dbbbd8cc1985
+SHA512 (gio2-4.2.0.gem) = e8eb769a495ef8d6dbb76e7547856ad20b4f57fc5fc58a23cddb7c3b7e68226bfe3397b413969e76a9f79bc0167758406774c2a3ebc21634c27d611c0728cb08
+SHA512 (gio2-4.2.0-test-missing-files.tar.gz) = 66492dbf9eefc1fb36c6c921dbd9c85bfd7ec7a3a7d9195abc2d48424f0a97ad6ff513ec44d34c207722443fad3574ef816c893411874c44b2913991b34ab531