diff --git a/Box2D.spec b/Box2D.spec
index ab438ac..b2e96ff 100644
--- a/Box2D.spec
+++ b/Box2D.spec
@@ -1,6 +1,6 @@
 Name: Box2D
 Version:  2.3.1
-Release:  12%{?dist}
+Release:  13%{?dist}
 Summary: A 2D Physics Engine for Games
 
 License: zlib
@@ -69,6 +69,9 @@ find %{buildroot} -name '*.a' | xargs rm
 
 
 %changelog
+* Mon Jul 27 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.3.1-13
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
 * Tue Jan 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.3.1-12
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild