diff --git a/widelands.spec b/widelands.spec
index 6ff2622..02985ab 100644
--- a/widelands.spec
+++ b/widelands.spec
@@ -7,7 +7,7 @@
 
 Name:           widelands
 Version:        0
-Release:        0.80.%{buildid}%{?dist}
+Release:        0.81.%{buildid}%{?dist}
 Summary:        Open source realtime-strategy game
 
 License:        GPLv2+
@@ -169,6 +169,9 @@ popd
 
 
 %changelog
+* Fri Jan 22 2021 Jonathan Wakely <jwakely@redhat.com> - 0-0.81.build20
+- Rebuilt for Boost 1.75
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0-0.80.build20
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild