diff --git a/userspace-rcu.spec b/userspace-rcu.spec
index d9ad24d..ddfc511 100644
--- a/userspace-rcu.spec
+++ b/userspace-rcu.spec
@@ -1,6 +1,6 @@
 Name:           userspace-rcu
 Version:        0.8.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        RCU (read-copy-update) implementation in user space
 
 Group:          System Environment/Libraries
@@ -75,6 +75,9 @@ rm -vf $RPM_BUILD_ROOT%{_libdir}/*.la
 
 
 %changelog
+* Sun Jun 08 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.8.1-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
+
 * Thu May 22 2014 Marcin Juszkiewicz <mjuszkiewicz@redhat.com> - 0.8.1-3
 - Use upstream patch for aarch64 (includes ppc64le too)