diff --git a/rubygem-glu.spec b/rubygem-glu.spec
index 510cd10..9ef5d6f 100644
--- a/rubygem-glu.spec
+++ b/rubygem-glu.spec
@@ -1,10 +1,10 @@
 %global	gem_name	glu
 
-%global	need_bootstrap	0
+%global	need_bootstrap	1
 
 Name:		rubygem-%{gem_name}
 Version:	8.3.0
-Release:	3%{?dist}
+Release:	4%{?dist}
 
 Summary:	Glu bindings for the opengl gem
 License:	MIT
@@ -100,6 +100,10 @@ popd
 %doc	%{gem_docdir}
 
 %changelog
+* Thu Jan 04 2018 Mamoru TASAKA <mtasaka@fedoraproject.org> - 8.3.0-4
+- F-28: rebuild for ruby25
+- Once disable tests for bootstrap
+
 * Thu Aug 03 2017 Fedora Release Engineering <releng@fedoraproject.org> - 8.3.0-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild