diff --git a/tests/regression_tests/triso/inputs_true.dat b/tests/regression_tests/triso/inputs_true.dat
index 7e5007eca2..2ea049465c 100644
--- a/tests/regression_tests/triso/inputs_true.dat
+++ b/tests/regression_tests/triso/inputs_true.dat
@@ -432,7 +432,7 @@
 <settings>
   <run_mode>eigenvalue</run_mode>
   <particles>100</particles>
-  <batches>5</batches>
+  <batches>4</batches>
   <inactive>0</inactive>
   <source strength="1.0">
     <space type="point">
diff --git a/tests/regression_tests/triso/results_true.dat b/tests/regression_tests/triso/results_true.dat
index dfc700c058..eb06a771c9 100644
--- a/tests/regression_tests/triso/results_true.dat
+++ b/tests/regression_tests/triso/results_true.dat
@@ -1,2 +1,2 @@
 k-combined:
-1.683226E+00 7.383559E-02
+1.707485E+00 9.795497E-02
diff --git a/tests/regression_tests/triso/test.py b/tests/regression_tests/triso/test.py
index 3b858e6a71..aa1bf08289 100644
--- a/tests/regression_tests/triso/test.py
+++ b/tests/regression_tests/triso/test.py
@@ -82,7 +82,7 @@ class TRISOTestHarness(PyAPITestHarness):
         geom.export_to_xml()
 
         settings = openmc.Settings()
-        settings.batches = 5
+        settings.batches = 4
         settings.inactive = 0
         settings.particles = 100
         settings.source = openmc.Source(space=openmc.stats.Point())
@@ -93,5 +93,5 @@ class TRISOTestHarness(PyAPITestHarness):
 
 
 def test_triso():
-    harness = TRISOTestHarness('statepoint.5.h5')
+    harness = TRISOTestHarness('statepoint.4.h5')
     harness.main()