diff --git a/tasks/task_14_variance_reduction/2_shielded_room_single_ww.ipynb b/tasks/task_14_variance_reduction/2_shielded_room_single_ww.ipynb
index 390a357f..1624a465 100644
--- a/tasks/task_14_variance_reduction/2_shielded_room_single_ww.ipynb
+++ b/tasks/task_14_variance_reduction/2_shielded_room_single_ww.ipynb
@@ -418,7 +418,7 @@
     "# we are reducing the number of particles so this simulation takes a similar amount of time\n",
     "# to the previous simulation that didn't use weight windows. So we can make a fair comparison\n",
     "model.settings.particles = 4900\n",
-    "model.settings.max_splits = 1_000  # controls the maximum partile splits over the entire lifetime of the particle\n",
+    "model.settings.max_history_splits = 1_000  # controls the maximum partile splits over the entire lifetime of the particle\n",
     "model.settings.weight_window_generators = wwg"
    ]
   },
diff --git a/tasks/task_14_variance_reduction/3_sphere_iterative_per_run_ww.ipynb b/tasks/task_14_variance_reduction/3_sphere_iterative_per_run_ww.ipynb
index 3f746188..3f2d10d5 100644
--- a/tasks/task_14_variance_reduction/3_sphere_iterative_per_run_ww.ipynb
+++ b/tasks/task_14_variance_reduction/3_sphere_iterative_per_run_ww.ipynb
@@ -199,7 +199,7 @@
     "my_settings.source = source\n",
     "my_settings.particles = 120\n",
     "my_settings.batches = 10\n",
-    "my_settings.max_splits = 4000  # controls the total number of maximum splits a particle can do over the entire lifetime\n",
+    "my_settings.max_history_splits = 4000  # controls the total number of maximum splits a particle can do over the entire lifetime\n",
     "\n",
     "# no need to write the tallies.out file which saves space and time when large meshes are used\n",
     "my_settings.output = {'tallies': False}"
diff --git a/tasks/task_14_variance_reduction/4_sphere_iterative_per_batch_ww.ipynb b/tasks/task_14_variance_reduction/4_sphere_iterative_per_batch_ww.ipynb
index 6889821c..b6c9f32c 100644
--- a/tasks/task_14_variance_reduction/4_sphere_iterative_per_batch_ww.ipynb
+++ b/tasks/task_14_variance_reduction/4_sphere_iterative_per_batch_ww.ipynb
@@ -156,7 +156,7 @@
     "my_settings.source = source\n",
     "my_settings.particles = 50000\n",
     "my_settings.batches = 5\n",
-    "my_settings.max_splits = 100  # controls the total number of maximum splits a particle can do over the entire lifetime\n",
+    "my_settings.max_history_splits = 100  # controls the total number of maximum splits a particle can do over the entire lifetime\n",
     "\n",
     "# the mesh tallies produce large tallies.out files so this output setting avoids writing the tallies.out and saves time\n",
     "my_settings.output = {'tallies': False}"