diff --git a/python-astroML.spec b/python-astroML.spec
index bc9364a..5aa4233 100644
--- a/python-astroML.spec
+++ b/python-astroML.spec
@@ -3,7 +3,7 @@
 
 Name:           python-%{upname}
 Version:        0.3
-Release:        20%{?dist}
+Release:        21%{?dist}
 Summary:        Python tools for machine learning and data mining in Astronomy
 
 License:        BSD
@@ -142,6 +142,9 @@ popd
 
 
 %changelog
+* Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.3-21
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
+
 * Tue Jun 19 2018 Miro Hrončok <mhroncok@redhat.com> - 0.3-20
 - Rebuilt for Python 3.7