diff --git a/python-transaction.spec b/python-transaction.spec
index 6bf1d1a..9f0fe9a 100644
--- a/python-transaction.spec
+++ b/python-transaction.spec
@@ -1,9 +1,9 @@
 Name:           python-transaction
 Version:        4.0
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Transaction management for Python
 
-License:        ZPLv2.1
+License:        ZPL-2.1
 URL:            https://pypi.io/project/transaction
 Source0:        %pypi_source transaction
 
@@ -56,6 +56,9 @@ rm -rf %{modname}.egg-info
 
 
 %changelog
+* Sun Apr 14 2024 Miroslav Suchý <msuchy@redhat.com> - 4.0-4
+- convert license to SPDX
+
 * Fri Jan 26 2024 Fedora Release Engineering <releng@fedoraproject.org> - 4.0-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild