diff --git a/src/extensions/scratch3_video_sensing/library.js b/src/extensions/scratch3_video_sensing/library.js
index 5a6ac344e..6de242142 100644
--- a/src/extensions/scratch3_video_sensing/library.js
+++ b/src/extensions/scratch3_video_sensing/library.js
@@ -291,8 +291,7 @@ class VideoMotion {
 
             // The public APIs for Renderer#isTouching manage keeping the matrix and
             // silhouette up-to-date, which is needed for drawable#isTouching to work (used below)
-            drawable.updateMatrix();
-            if (drawable.skin) drawable.skin.updateSilhouette();
+            drawable.updateCPURenderAttributes();
 
             // Restrict the region the amount and direction are built from to
             // the area of the current frame overlapped by the given drawable's
diff --git a/test/unit/extension_video_sensing.js b/test/unit/extension_video_sensing.js
index 197c06e87..22c2adae8 100644
--- a/test/unit/extension_video_sensing.js
+++ b/test/unit/extension_video_sensing.js
@@ -87,7 +87,7 @@ const isNearAngle = (actual, expect, optMargin = 10) => (
 // A fake scratch-render drawable that will be used by VideoMotion to restrain
 // the area considered for motion detection in VideoMotion.getLocalMotion
 const fakeDrawable = {
-    updateMatrix () {}, // no-op, since isTouching always returns true
+    updateCPURenderAttributes () {}, // no-op, since isTouching always returns true
 
     getFastBounds () {
         return {