diff --git a/demos/hello-ar/package-lock.json b/demos/hello-ar/package-lock.json
index 2f35b02..1463a12 100644
--- a/demos/hello-ar/package-lock.json
+++ b/demos/hello-ar/package-lock.json
@@ -3696,9 +3696,9 @@
       }
     },
     "three": {
-      "version": "0.114.0",
-      "resolved": "https://registry.npmjs.org/three/-/three-0.114.0.tgz",
-      "integrity": "sha512-3av45FxJeqYm7Rl02dfGBoqTaf2a934oUB4zMNrN8xjmASoSGeeykYoAr35+UntTdJDY/STw6CY3KuXFBWETig=="
+      "version": "0.137.0",
+      "resolved": "https://registry.npmjs.org/three/-/three-0.137.0.tgz",
+      "integrity": "sha512-rzSDhia6cU35UCy6y+zEEws6vSgytfHqFMSaBvUcySgzwvDO6vETyswtSNi/+aVqJw8WLMwyT1mlQQ1T/dxxOA=="
     },
     "tmp": {
       "version": "0.0.33",
diff --git a/demos/hello-ar/package.json b/demos/hello-ar/package.json
index 49d6aee..d31d4f1 100644
--- a/demos/hello-ar/package.json
+++ b/demos/hello-ar/package.json
@@ -39,7 +39,7 @@
     "@material/mwc-linear-progress": "^0.13.0",
     "@material/mwc-snackbar": "^0.13.0",
     "lit-element": "^2.2.1",
-    "three": "^0.114.0",
+    "three": "^0.137.0",
     "workbox-build": "^5.0.0",
     "workbox-sw": "^5.0.0"
   }