diff --git a/mpqc.spec b/mpqc.spec
index 8049eb7..07823a2 100644
--- a/mpqc.spec
+++ b/mpqc.spec
@@ -1,7 +1,7 @@
 Name:           mpqc
 Summary:        Ab-inito chemistry program
 Version:        2.3.1
-Release:        48%{?dist}
+Release:        49%{?dist}
 License:        GPLv2+ and LGPLv2+
 URL:            http://www.mpqc.org/
 Source0:        http://downloads.sourceforge.net/mpqc/%{name}-%{version}.tar.bz2
@@ -188,6 +188,9 @@ done
 
 
 %changelog
+* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.3.1-49
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Sun Aug 16 2020 Iñaki Úcar <iucar@fedoraproject.org> - 2.3.1-48
 - https://fedoraproject.org/wiki/Changes/FlexiBLAS_as_BLAS/LAPACK_manager