diff --git a/package.json b/package.json
index 0ed3ebe..8de7e6d 100644
--- a/package.json
+++ b/package.json
@@ -60,6 +60,9 @@
     "linting"
   ],
   "license": "Apache-2.0",
+  "dependencies": {
+    "@humanwhocodes/momoa": "^3.1.1"
+  },
   "devDependencies": {
     "@eslint/core": "^0.1.0",
     "@types/eslint": "^8.56.10",
@@ -77,9 +80,6 @@
   "engines": {
     "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
   },
-  "dependencies": {
-    "@humanwhocodes/momoa": "^3.0.6"
-  },
   "peerDependencies": {
     "eslint": "^9.6.0"
   }
diff --git a/src/languages/json-language.js b/src/languages/json-language.js
index 1b87fec..5cb87bc 100644
--- a/src/languages/json-language.js
+++ b/src/languages/json-language.js
@@ -9,6 +9,7 @@
 
 import { parse } from "@humanwhocodes/momoa";
 import { JSONSourceCode } from "./json-source-code.js";
+import { visitorKeys } from "@humanwhocodes/momoa";
 
 //-----------------------------------------------------------------------------
 // Types
@@ -59,6 +60,12 @@ export class JSONLanguage {
 	 */
 	#mode = "json";
 
+	/**
+	 * The visitor keys.
+	 * @type {Record<string, string[]>}
+	 */
+	visitorKeys = Object.fromEntries([...visitorKeys]);
+
 	/**
 	 * Creates a new instance.
 	 * @param {Object} options The options to use for this instance.
diff --git a/tests/languages/json-language.test.js b/tests/languages/json-language.test.js
index ca02533..98d5bf1 100644
--- a/tests/languages/json-language.test.js
+++ b/tests/languages/json-language.test.js
@@ -15,6 +15,14 @@ import assert from "node:assert";
 //-----------------------------------------------------------------------------
 
 describe("JSONLanguage", () => {
+	describe("visitorKeys", () => {
+		it("should have visitorKeys property", () => {
+			const language = new JSONLanguage({ mode: "json" });
+
+			assert.deepStrictEqual(language.visitorKeys.Document, ["body"]);
+		});
+	});
+
 	describe("parse()", () => {
 		it("should not parse jsonc by default", () => {
 			const language = new JSONLanguage({ mode: "json" });