diff --git a/FlightCrew.spec b/FlightCrew.spec
index a82b95a..6f303f6 100644
--- a/FlightCrew.spec
+++ b/FlightCrew.spec
@@ -1,6 +1,6 @@
 Name:           FlightCrew
 Version:        0.9.1
-Release:        22%{?dist}
+Release:        23%{?dist}
 Summary:        EPUB validator
 License:        LGPLv3+
 URL:            https://sigil-ebook.com/
@@ -107,6 +107,9 @@ appstream-util validate-relax --nonet \
 
 
 %changelog
+* Mon Jan 25 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.9.1-23
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Fri Jan 22 2021 Jonathan Wakely <jwakely@redhat.com> - 0.9.1-22
 - Rebuilt for Boost 1.75