diff --git a/openmeeg.spec b/openmeeg.spec
index f04f0a9..2cf6f4d 100644
--- a/openmeeg.spec
+++ b/openmeeg.spec
@@ -15,7 +15,7 @@ ExcludeArch: s390x
 
 Name:    openmeeg
 Version: 2.4.2
-Release: 0.3%{?dist}
+Release: 0.4%{?dist}
 Summary: Low-frequency bio-electromagnetism solving forward problems in the field of EEG and MEG
 License: CeCILL-B
 URL:     http://openmeeg.github.io/
@@ -206,6 +206,9 @@ ctest3 --force-new-ctest-process --parallel %{?_smp_mflags}
 %endif
 
 %changelog
+* Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.4.2-0.4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
 * Tue May 26 2020 Miro Hrončok <mhroncok@redhat.com> - 2.4.2-0.3
 - Rebuilt for Python 3.9