diff --git a/mopac7.spec b/mopac7.spec
index 6bfcf3b..ec793d8 100644
--- a/mopac7.spec
+++ b/mopac7.spec
@@ -1,7 +1,7 @@
 Name:           mopac7
 Summary:        Semi-empirical quantum mechanics suite
 Version:        1.15
-Release:        22%{?dist}
+Release:        23%{?dist}
 License:        Public Domain
 URL:            http://sourceforge.net/projects/mopac7/
 Source0:        http://bioinformatics.org/ghemical/download/current/mopac7-%{version}.tar.gz
@@ -75,6 +75,9 @@ find tests -name 'Makefile*' -delete -print
 %{_libdir}/pkgconfig/libmopac7.pc
 
 %changelog
+* Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.15-23
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
+
 * Sun Jan 29 2017 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.15-22
 - F-26: rebuild againt gfortran 7