diff --git a/erlang-merge_index.spec b/erlang-merge_index.spec
index 61a16bd..5f85dca 100644
--- a/erlang-merge_index.spec
+++ b/erlang-merge_index.spec
@@ -6,7 +6,7 @@
 
 Name:		erlang-%{realname}
 Version:	2.1
-Release:	3%{?dist}
+Release:	4%{?dist}
 Summary:	An Erlang library for storing ordered sets on disk
 Group:		Development/Languages
 License:	ASL 2.0
@@ -49,6 +49,9 @@ similar to an SSTable (in Google's Bigtable) or an HFile (in Hadoop).
 
 
 %changelog
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.1-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild