diff --git a/python-nixio.spec b/python-nixio.spec
index de802e1..a7edc03 100644
--- a/python-nixio.spec
+++ b/python-nixio.spec
@@ -3,7 +3,7 @@
 
 Name:       python-%{srcname}
 Version:    1.4.9
-Release:    11%{?dist}
+Release:    12%{?dist}
 Summary:    Python bindings for NIX
 
 License:    BSD
@@ -89,6 +89,9 @@ done
 %license LICENSE
 
 %changelog
+* Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.9-12
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.9-11
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild