diff --git a/rrdtool.spec b/rrdtool.spec
index 80fe908..b46c5e4 100644
--- a/rrdtool.spec
+++ b/rrdtool.spec
@@ -24,7 +24,7 @@
 Summary: Round Robin Database Tool to store and display time-series data
 Name: rrdtool
 Version: 1.7.0
-Release: 19%{?dist}
+Release: 20%{?dist}
 License: GPLv2+ with exceptions
 Group: Applications/Databases
 URL: http://oss.oetiker.ch/rrdtool/
@@ -465,6 +465,9 @@ LD_LIBRARY_PATH=%{buildroot}%{_libdir} php -n \
 %endif
 
 %changelog
+* Mon Jan 21 2019 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.7.0-20
+- F-30: rebuild against ruby26
+
 * Wed Dec  5 2018 Jaroslav Škarvada <jskarvad@redhat.com> - 1.7.0-19
 - Dropped useless Makefile in examples/rrdcached