diff --git a/contrib/openmc b/contrib/openmc
index 47ca2916a..b939f9003 160000
--- a/contrib/openmc
+++ b/contrib/openmc
@@ -1 +1 @@
-Subproject commit 47ca2916aa85a2909a5f6e0a3442ab7c581894b1
+Subproject commit b939f9003b65b8b7c1070256f51638c25e8d8c30
diff --git a/test/tests/neutronics/filters/particle/gold/cell_out.csv b/test/tests/neutronics/filters/particle/gold/cell_out.csv
index 08183141a..0618af77f 100644
--- a/test/tests/neutronics/filters/particle/gold/cell_out.csv
+++ b/test/tests/neutronics/filters/particle/gold/cell_out.csv
@@ -1,2 +1,2 @@
 time,Pebble_1_heating_electron,Pebble_1_heating_neutron,Pebble_1_heating_photon,Pebble_1_heating_positron,Pebble_2_heating_electron,Pebble_2_heating_neutron,Pebble_2_heating_photon,Pebble_2_heating_positron,Pebble_3_heating_electron,Pebble_3_heating_neutron,Pebble_3_heating_photon,Pebble_3_heating_positron
-1,21.938872478713,79.2750006592,1.1794666561604,-0.17375156379459,24.767093000321,199.05709502079,1.3087851423283,-0.20326423541083,28.588590242938,359.65149172512,1.3588428094673,-0.13052636911918
+1,21.878013556556,78.852839905674,0.071583322908022,0.9436600952536,24.828704933431,201.41073007724,0.083430939215633,0.98558655827646,28.478291657637,357.74477955155,0.094832205733382,1.1415712139046
diff --git a/test/tests/neutronics/gen_mgxs/photon_xs/gold/mgxs_photon_out.csv b/test/tests/neutronics/gen_mgxs/photon_xs/gold/mgxs_photon_out.csv
index 9bf2d8a72..76bbffc00 100644
--- a/test/tests/neutronics/gen_mgxs/photon_xs/gold/mgxs_photon_out.csv
+++ b/test/tests/neutronics/gen_mgxs/photon_xs/gold/mgxs_photon_out.csv
@@ -1,2 +1,2 @@
 time,total_xs_g1,total_xs_g2
-2,3.3511358542425,0
+2,3.3232293188494,0