diff --git a/robin-map.spec b/robin-map.spec
index 4603494..f7e939d 100644
--- a/robin-map.spec
+++ b/robin-map.spec
@@ -2,7 +2,7 @@
 
 Name:           robin-map
 Version:        1.2.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        C++ implementation of a fast hash map and hash set using robin hood hashing
 
 License:        MIT
@@ -72,6 +72,9 @@ pushd tests
 
 
 %changelog
+* Mon Jan 22 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.1-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
+
 * Fri Jul 21 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild