diff --git a/zlib-ada.spec b/zlib-ada.spec
index 710ee9a..f3ae72c 100644
--- a/zlib-ada.spec
+++ b/zlib-ada.spec
@@ -1,6 +1,6 @@
 Name:           zlib-ada
 Version:        1.4
-Release:        0.16.20120830CVS%{?dist}
+Release:        0.17.20120830CVS%{?dist}
 Summary:        Zlib for Ada
 Summary(sv):    Zlib för ada
 
@@ -94,6 +94,9 @@ cp --preserve=timestamps %{SOURCE3} %{buildroot}%{_GNAT_project_dir}/
 
 
 %changelog
+* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.4-0.17.20120830CVS
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
 * Mon Jul 10 2017 Pavel Zhukov <pzhukov@redhat.com> - 1.4-0.16.20120830CVS
 - rebuild with new gnat