diff --git a/CBFlib.spec b/CBFlib.spec
index d59c65e..aa0f329 100644
--- a/CBFlib.spec
+++ b/CBFlib.spec
@@ -1,7 +1,7 @@
 Summary: Crystallographic Binary File and Image Library
 Name: CBFlib
 Version: 0.9.2.3
-Release: 5%{?dist}
+Release: 6%{?dist}
 # library files (*.so*) are LGPLv2+, all else is GPLv2+
 License: GPLv2+ and (GPLv2+ or LGPLv2+)
 Group: System Environment/Libraries
@@ -136,6 +136,9 @@ rm -rf %{buildroot}
 %{_includedir}/cbf
 
 %changelog
+* Fri Jun 06 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.9.2.3-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
+
 * Fri Aug 02 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.9.2.3-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild