diff --git a/sundials.spec b/sundials.spec
index 585ec79..00a301f 100644
--- a/sundials.spec
+++ b/sundials.spec
@@ -8,7 +8,7 @@
 Summary:    Suite of nonlinear solvers
 Name:       sundials
 Version:    2.6.1
-Release:    8%{?dist}
+Release:    9%{?dist}
 # SUNDIALS is licensed under BSD with some additional (but unrestrictive) clauses.
 # Check the file 'LICENSE' for details.
 License:    BSD
@@ -520,6 +520,9 @@ popd
 %{_libdir}/pkgconfig/fnvec_pthreads.pc
 
 %changelog
+* Fri Jun 19 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.6.1-9
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
 * Wed Jun 03 2015 Antonio Trande <sagitterATfedoraproject.org> - 2.6.1-8
 - Excluded some tests for s390 s390x
 - openmpi tests disabled on ix86 %%{arm} (BZ#1201901)