diff --git a/js.spec b/js.spec
index fb18613..29f5e45 100644
--- a/js.spec
+++ b/js.spec
@@ -4,7 +4,7 @@ Summary:		JavaScript interpreter and libraries
 Name:		js
 Epoch:		1
 Version:		1.8.5
-Release:		27%{?hgdate:.hg%{hgdate}}%{?dist}
+Release:		28%{?hgdate:.hg%{hgdate}}%{?dist}
 License:		GPLv2+ or LGPLv2+ or MPLv1.1
 Group:		Development/Languages
 URL:			http://www.mozilla.org/js/
@@ -154,6 +154,9 @@ make -C js/src check
 %{_includedir}/js
 
 %changelog
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1:1.8.5-28
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Fri Mar 10 2017 Dan Horák <dan[at]danny.cz> - 1:1.8.5-27
 - add patch for 48-bit VA (#1423793)