diff --git a/pyicu.spec b/pyicu.spec
index ef836f5..951ea27 100644
--- a/pyicu.spec
+++ b/pyicu.spec
@@ -4,7 +4,7 @@
 %define		realname PyICU
 Name:		pyicu
 Version:	1.5
-Release:	20%{?dist}
+Release:	21%{?dist}
 Summary:	Python extension wrapping IBM's ICU C++ libraries
 Group:		Development/Tools
 License:	MIT
@@ -86,6 +86,9 @@ rm -rf %{buildroot}%{python2_sitearch}/tests %{buildroot}%{python3_sitearch}/tes
 %{python3_sitearch}/*
 
 %changelog
+* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.5-21
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Fri Jul 07 2017 Igor Gnatenko <ignatenko@redhat.com> - 1.5-20
 - Rebuild due to bug in RPM (RHBZ #1468476)