diff --git a/Field3D.spec b/Field3D.spec
index f3394e4..be4d9fa 100644
--- a/Field3D.spec
+++ b/Field3D.spec
@@ -1,6 +1,6 @@
 Name:           Field3D
 Version:        1.7.2
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Library for storing voxel data
 
 License:        BSD
@@ -80,6 +80,9 @@ popd
 
 
 %changelog
+* Tue Dec 06 2016 Orion Poplawski <orion@cora.nwra.com> - 1.7.2-4
+- Rebuild for hdf5 1.8.18
+
 * Mon Oct 17 2016 Richard Shaw <hobbes1069@gmail.com> - 1.7.2-3
 - Add patch to fix unit tests on big endian systems.