diff --git a/python-justbases.spec b/python-justbases.spec
index 9db1be9..634c63c 100644
--- a/python-justbases.spec
+++ b/python-justbases.spec
@@ -1,7 +1,7 @@
 %global srcname justbases
 Name:       python-%{srcname}
 Version:    0.9
-Release:    3%{?dist}
+Release:    4%{?dist}
 Summary:    A small library for precise conversion between arbitrary bases
 
 License:    GPLv2+
@@ -66,6 +66,9 @@ rm -rf justbases.egg-info
 %{python3_sitelib}/justbases-%{version}-*.egg-info
 
 %changelog
+* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.9-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.9-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild