diff --git a/lib/index.js b/lib/index.js
index e05db06..2262c1c 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -7,7 +7,6 @@ import {convertElement} from 'hast-util-is-element'
 /**
  * Check if a node is a *embedded content*.
  *
- * @type {import('hast-util-is-element').AssertPredicate<Element & {tagName: 'audio' | 'canvas' | 'embed' | 'iframe' | 'img' | 'math' | 'object' | 'picture' | 'svg' | 'video'}>}
  * @param value
  *   Thing to check (typically `Node`).
  * @returns
@@ -16,16 +15,23 @@ import {convertElement} from 'hast-util-is-element'
  *   The elements `audio`, `canvas`, `embed`, `iframe`, `img`, `math`,
  *   `object`, `picture`, `svg`, and `video` are embedded content.
  */
-// @ts-expect-error Sure, the assertion matches.
-export const embedded = convertElement([
-  'audio',
-  'canvas',
-  'embed',
-  'iframe',
-  'img',
-  'math',
-  'object',
-  'picture',
-  'svg',
-  'video'
-])
+export const embedded = convertElement(
+  /**
+   * @param element
+   * @returns {element is Element & {tagName: 'audio' | 'canvas' | 'embed' | 'iframe' | 'img' | 'math' | 'object' | 'picture' | 'svg' | 'video'}}
+   */
+  function (element) {
+    return (
+      element.tagName === 'audio' ||
+      element.tagName === 'canvas' ||
+      element.tagName === 'embed' ||
+      element.tagName === 'iframe' ||
+      element.tagName === 'img' ||
+      element.tagName === 'math' ||
+      element.tagName === 'object' ||
+      element.tagName === 'picture' ||
+      element.tagName === 'svg' ||
+      element.tagName === 'video'
+    )
+  }
+)
diff --git a/package.json b/package.json
index c97134c..3ed8ede 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,8 @@
     "index.js"
   ],
   "dependencies": {
-    "hast-util-is-element": "^2.0.0"
+    "@types/hast": "^3.0.0",
+    "hast-util-is-element": "^3.0.0"
   },
   "devDependencies": {
     "@types/node": "^20.0.0",
diff --git a/test.js b/test.js
index a3f751e..ff13df1 100644
--- a/test.js
+++ b/test.js
@@ -10,6 +10,7 @@ test('embedded', () => {
     'should expose the public api'
   )
 
+  // @ts-expect-error: check how a missing node is handled.
   assert.equal(embedded(), false, 'should return `false` without node')
 
   assert.equal(embedded(null), false, 'should return `false` with `null`')