diff --git a/notebooks/point-cloud-processing.ipynb b/notebooks/point-cloud-processing.ipynb
index 7a5ec6c..c315503 100644
--- a/notebooks/point-cloud-processing.ipynb
+++ b/notebooks/point-cloud-processing.ipynb
@@ -244,7 +244,7 @@
     "            'bounds':str(([b[0], b[2]],[b[1], b[3]]))},\n",
     "        {   \"type\":\"filters.crop\",\n",
     "            'polygon':polygon.wkt},\n",
-    "        {   \"type\":\"filters.hag\"},\n",
+    "        {   \"type\":\"filters.hag_delaunay\"},\n",
     "        {   \"type\":\"filters.eigenvalues\",\n",
     "            \"knn\":16},\n",
     "        {   \"type\":\"filters.normal\",\n",
@@ -502,7 +502,7 @@
     "        {   \"type\":\"filters.crop\",\n",
     "            'bounds':str(([b[0], b[2]],[b[1], b[3]]))},\n",
     "        {   \"type\":\"filters.merge\"},\n",
-    "        {   \"type\":\"filters.hag\"},\n",
+    "        {   \"type\":\"filters.hag_delaunay\"},\n",
     "        {   \"type\":\"filters.crop\",\n",
     "            'polygon':polygon2.wkt},\n",
     "        {   \"type\":\"filters.eigenvalues\",\n",