diff --git a/rubygem-gdk4.spec b/rubygem-gdk4.spec
index 4c85200..04312c7 100644
--- a/rubygem-gdk4.spec
+++ b/rubygem-gdk4.spec
@@ -1,10 +1,10 @@
 %global	gem_name	gdk4
 
-%global	gem_ver	4.3.4
+%global	gem_ver	4.2.5
 %global	gem_ver_escaped %(v=%{gem_ver}; echo ${v} | sed -e 's|\\.|\\\\.|g')
 
 Name:		rubygem-%{gem_name}
-Version:	4.3.4
+Version:	4.2.5
 Release:	1%{?dist}
 
 Summary:	Ruby/GDK4 is a Ruby binding of GDK-4.x
@@ -55,10 +55,6 @@ mv ../%{gem_name}-%{version}.gemspec .
 # Allow higher version of other ruby-gnome suite pkgs
 sed -i -e 's|= %{gem_ver_escaped}|>= %{gem_ver}|' %{gem_name}-%{version}.gemspec
 
-# Remove unneeded rake runtime dependency
-sed -i %{gem_name}-%{version}.gemspec \
-	-e '\@add_runtime_dependency.*rake@d'
-
 %build
 gem build %{gem_name}-%{version}.gemspec
 %gem_install
@@ -85,14 +81,6 @@ rm -rf \
 popd
 
 %check
-# ref: https://bugzilla.redhat.com/show_bug.cgi?id=2275913
-# glycin on ppc64le is currently unusable
-%if 0%{?fedora} >= 43
-if ( arch | grep -q ppc64le ) ; then
-	exit 0
-fi
-%endif
-
 cp -a %{gem_name}/test .%{gem_instdir}
 pushd .%{gem_instdir}
 
@@ -113,39 +101,6 @@ popd
 %doc	%{gem_docdir}
 
 %changelog
-* Sat Dec 06 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.3.4-1
-- 4.3.4
-
-* 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 Aug 15 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.3.0-3
-- Exclude tests on glycin ppc64le for now (bug 2275913)
-
-* 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> - 4.2.5-2
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
-
 * Sun Dec 15 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 4.2.5-1
 - 4.2.5
 
diff --git a/sources b/sources
index 944c820..747377b 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (gdk4-4.3.4.gem) = 4205c8439d5365c19c3920f69d222cc57f10321bacb1c2ba8a8c78c695c32c0ccd90c6a5c0005dd09f49cc73d05d68362854dba3b8d4f96bbc0e5225f7749437
-SHA512 (gdk4-4.3.4-test-missing-files.tar.gz) = d8e25ff4ecea870c15b82ac63a71e519eac13fda518320f88ea9ed4cd517598a1af03d1173104ad5b6130cb1155fa5b348b2709cbefb70712e3ee36cc1115493
+SHA512 (gdk4-4.2.5.gem) = 1f17a4ae7a9729830311a6b5dea41f92b45a150224bdc7cf58fd923bfcfaa271ffbf8ef65df7ee9bb2f018c72f8777595e6cc2bfa989823d5966f354aa06c356
+SHA512 (gdk4-4.2.5-test-missing-files.tar.gz) = 6ca932a18690bebacb1ac4f2cf423ae13844c34aa2c371a81e0066c54b818e0716cf9cd1b758f908bf62a6bae4ebdabfbf25a74b0b35ac5adc6a9647585c5591