diff --git a/openbabel.spec b/openbabel.spec
index cd81e5a..a95657f 100644
--- a/openbabel.spec
+++ b/openbabel.spec
@@ -8,7 +8,7 @@
 
 Name: openbabel
 Version: 2.4.1
-Release: 30%{?dist}
+Release: 31%{?dist}
 Summary: Chemistry software file format converter
 License: GPLv2
 URL: https://openbabel.org/
@@ -244,6 +244,9 @@ export CTEST_OUTPUT_ON_FAILURE=1 PYTHONPATH=%{buildroot}%{python3_sitearch}
 %{ruby_vendorarchdir}/openbabel.so
 
 %changelog
+* Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.4.1-31
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
 * Mon Jun 22 2020 Jitka Plesnikova <jplesnik@redhat.com> - 2.4.1-30
 - Perl 5.32 rebuild