diff --git a/imath.spec b/imath.spec
index 729c228..21f3de8 100644
--- a/imath.spec
+++ b/imath.spec
@@ -4,7 +4,7 @@
 
 Name:           imath
 Version:        3.1.9
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Library of 2D and 3D vector, matrix, and math operations for computer graphics
 
 License:        BSD-3-Clause
@@ -97,6 +97,9 @@ Requires:       python3-devel
 
 
 %changelog
+* Wed Jan 17 2024 Jonathan Wakely <jwakely@redhat.com> - 3.1.9-4
+- Rebuilt for Boost 1.83
+
 * Thu Jul 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 3.1.9-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild