diff --git a/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[0-prtvor1l2r].npy b/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[0-prtvor1l2r].npy
index ff1e38b14d3..902dbe630c7 100644
Binary files a/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[0-prtvor1l2r].npy and b/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[0-prtvor1l2r].npy differ
diff --git a/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[1-prtvor1welp].npy b/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[1-prtvor1welp].npy
index c3a6a65497d..20a055815fc 100644
Binary files a/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[1-prtvor1welp].npy and b/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[1-prtvor1welp].npy differ
diff --git a/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[2-prtvor1weli].npy b/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[2-prtvor1weli].npy
index 9ec69de0ee0..3041db562ed 100644
Binary files a/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[2-prtvor1weli].npy and b/autotest/__snapshots__/test_prt_voronoi1/test_mf6model[2-prtvor1weli].npy differ
diff --git a/autotest/test_prt_voronoi1.py b/autotest/test_prt_voronoi1.py
index 2bdb18cfb23..b56a22012b0 100644
--- a/autotest/test_prt_voronoi1.py
+++ b/autotest/test_prt_voronoi1.py
@@ -365,6 +365,7 @@ def check_output(idx, test, snapshot):
     prt_track_csv_file = f"{prt_name}.prp.trk.csv"
     pls = pd.read_csv(prt_ws / prt_track_csv_file, na_filter=False)
     endpts = pls[pls.ireason == 3]  # termination
+    endpts.drop("icell", axis=1, inplace=True)
 
     # compare pathlines with snapshot. particles shouldn't
     # have moved vertically. round for cross-platform error.