diff --git a/byaccj.spec b/byaccj.spec
index e099ab4..a3354cb 100644
--- a/byaccj.spec
+++ b/byaccj.spec
@@ -1,8 +1,8 @@
 Summary:        Parser Generator with Java Extension
 Name:           byaccj
 Version:        1.15
-Release:        31%{?dist}
-License:        Public Domain
+Release:        32%{?dist}
+License:        LicenseRef-Fedora-Public-Domain
 URL:            http://byaccj.sourceforge.net/
 
 Source0:        http://sourceforge.net/projects/byaccj/files/byaccj/1.15/byaccj1.15_src.tar.gz
@@ -42,6 +42,9 @@ install -p -m 755 src/yacc %{buildroot}%{_bindir}/%{name}
 %{_bindir}/%{name}
 
 %changelog
+* Fri Sep 01 2023 Mikolaj Izdebski <mizdebsk@redhat.com> - 1.15-32
+- Convert License tag to SPDX format
+
 * Wed Jul 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.15-31
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild