diff --git a/lbd.spec b/lbd.spec
index 99b53a9..c035beb 100644
--- a/lbd.spec
+++ b/lbd.spec
@@ -1,6 +1,6 @@
 Name:           lbd
 Version:        0.4
-Release:        20%{?dist}
+Release:        21%{?dist}
 Summary:        A DNS/HTTP load balancing detector
 
 # Automatically converted from old format: GPLv2+ - review is highly recommended.
@@ -30,6 +30,9 @@ install -p -m 755 %{SOURCE0} %{buildroot}%{_bindir}/
 %{_bindir}/lbd
 
 %changelog
+* Thu Jul 24 2025 Fedora Release Engineering <releng@fedoraproject.org> - 0.4-21
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
+
 * Fri Jan 17 2025 Fedora Release Engineering <releng@fedoraproject.org> - 0.4-20
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild