diff --git a/rubygem-glu.spec b/rubygem-glu.spec
index d45ad1c..46b5944 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:	8%{?dist}
+Release:	9%{?dist}
 
 Summary:	Glu bindings for the opengl gem
 License:	MIT
@@ -101,6 +101,10 @@ popd
 %doc	%{gem_docdir}
 
 %changelog
+* Mon Jan 21 2019 Mamoru TASAKA <mtasaka@fedoraproject.org> - 8.3.0-9
+- F-30: rebuild against ruby26
+- Once disable tests for bootstrap
+
 * Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 8.3.0-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild