diff --git a/Field3D.spec b/Field3D.spec
index 0e0e0a8..ad7cae8 100644
--- a/Field3D.spec
+++ b/Field3D.spec
@@ -1,6 +1,6 @@
 Name:           Field3D
 Version:        1.7.3
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        Library for storing voxel data
 
 License:        BSD
@@ -66,6 +66,9 @@ pushd %{_vpath_builddir}
 
 
 %changelog
+* Fri Jan 01 2021 Richard Shaw <hobbes1069@gmail.com> - 1.7.3-6
+- Rebuild for OpenEXR 2.5.3.
+
 * Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.7.3-5
 - Second attempt - Rebuilt for
   https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild