diff --git a/gauche-gtk.spec b/gauche-gtk.spec
index 167e72c..8067d93 100644
--- a/gauche-gtk.spec
+++ b/gauche-gtk.spec
@@ -8,7 +8,7 @@
 Name:           gauche-gtk
 Epoch:          1
 Version:        0.6
-Release:        0.23.%{alphatag}%{?dist}
+Release:        0.24.%{alphatag}%{?dist}
 Summary:        Gauche extension module to use GTK
 
 License:        BSD
@@ -93,6 +93,9 @@ xvfb-run -a -w 1 %make_build check
 
 
 %changelog
+* Thu Jul 25 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1:0.6-0.24.20181110git0220722
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
 * Thu Jan 31 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1:0.6-0.23.20181110git0220722
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild