diff --git a/python-quantities.spec b/python-quantities.spec
index 8e4108f..cd6243f 100644
--- a/python-quantities.spec
+++ b/python-quantities.spec
@@ -2,7 +2,7 @@
 
 Name:       python-%{module_name}
 Version:    0.12.3
-Release:    3%{?dist}
+Release:    4%{?dist}
 Summary:    Support for physical quantities with units, based on numpy
 
 License:    BSD
@@ -63,6 +63,9 @@ cp %{SOURCE1} .
 
 
 %changelog
+* Tue May 26 2020 Miro Hrončok <mhroncok@redhat.com> - 0.12.3-4
+- Rebuilt for Python 3.9
+
 * Thu Jan 30 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.12.3-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild