diff --git a/src/experimental/demo/triangulate_tri_bisectors_demo.scad b/src/experimental/demo/triangulate_tri_bisectors_demo.scad
index e9935577..e91b9368 100644
--- a/src/experimental/demo/triangulate_tri_bisectors_demo.scad
+++ b/src/experimental/demo/triangulate_tri_bisectors_demo.scad
@@ -1,12 +1,12 @@
 use <hull_polyline2d.scad>;
-use <triangulate.scad>; 
+use <experimental/tri_ear_clipping.scad>; 
 use <shape_starburst.scad>;
 use <experimental/tri_bisectors.scad>;
 
 shape = shape_starburst(30, 12, 10);
 hull_polyline2d(concat(shape, [shape[0]]), width = 1);
 
-tris = triangulate(shape);
+tris = tri_ear_clipping(shape);
 for(tri = tris) {
     for(line = tri_bisectors([for(idx = tri) shape[idx]])) {
         hull_polyline2d(line, width = 1);
diff --git a/src/experimental/demo/voronoi_lines_demo.scad b/src/experimental/demo/voronoi_lines_demo.scad
index 529cfe7e..0ffff9b7 100644
--- a/src/experimental/demo/voronoi_lines_demo.scad
+++ b/src/experimental/demo/voronoi_lines_demo.scad
@@ -1,12 +1,12 @@
 use <hull_polyline2d.scad>;
 use <experimental/voronoi_lines.scad>;
-use <experimental/convex_hull.scad>;
+use <experimental/convex_hull2.scad>;
 
 pt_nums = 50;
 width = 1;
 points = [for(i = [0:pt_nums - 1]) rands(-50, 50, 2)];   
 
-hull_pts = convex_hull(points);
+hull_pts = convex_hull2(points);
 hull_polyline2d(
     concat(hull_pts, [hull_pts[0]]), 
     width = width, $fn = 4