diff --git a/gfan.spec b/gfan.spec
index 4267ff5..26b80bc 100644
--- a/gfan.spec
+++ b/gfan.spec
@@ -1,6 +1,6 @@
 Name:           gfan
 Version:        0.5
-Release:        17%{?dist}
+Release:        18%{?dist}
 Summary:        Software for Computing Gröbner Fans and Tropical Varieties
 License:        GPL+
 URL:            http://home.math.au.dk/jensen/software/gfan/gfan.html
@@ -106,6 +106,9 @@ rm -fr testsuite/0009RenderStairCase
 %doc homepage
 
 %changelog
+* Wed Aug 02 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.5-18
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild
+
 * Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.5-17
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild