diff --git a/libserf.spec b/libserf.spec
index aeab19e..39e3d39 100644
--- a/libserf.spec
+++ b/libserf.spec
@@ -8,7 +8,7 @@
 
 Name:           libserf
 Version:        1.3.9
-Release:        17%{?dist}
+Release:        18%{?dist}
 Summary:        High-Performance Asynchronous HTTP Client Library
 License:        ASL 2.0
 URL:            http://serf.apache.org/
@@ -74,6 +74,9 @@ export LD_LIBRARY_PATH=%{buildroot}%{_libdir}
 %{_libdir}/pkgconfig/serf*.pc
 
 %changelog
+* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.9-18
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.9-17
 - Second attempt - Rebuilt for
   https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild