diff --git a/index.js b/index.js
index 2051fa0..232a19d 100644
--- a/index.js
+++ b/index.js
@@ -72,7 +72,7 @@ export default function retextSpell(options = {}) {
     normalizeApostrophes,
     personal
   } = options
-  /** @type {Array<[Root, VFile, Config, (error?: Error|null|undefined) => void]>} */
+  /** @type {Array<[Root, VFile, Config, import('unified').TransformCallback<Root>]>} */
   const queue = []
   /** @type {Error|null|undefined} */
   let loadError
@@ -128,7 +128,8 @@ export default function retextSpell(options = {}) {
         all(...parameters)
       }
 
-      queue[index][3](error)
+      // To do: `dictionary`s should not pass `null`.
+      queue[index][3](error || undefined)
     }
 
     queue.length = 0
@@ -175,7 +176,7 @@ function all(tree, file, config) {
 
     if (
       !parent ||
-      position === null ||
+      position === undefined ||
       (ignoreLiteral && isLiteral(parent, position))
     ) {
       return
diff --git a/package.json b/package.json
index f12dbc9..5810c04 100644
--- a/package.json
+++ b/package.json
@@ -37,35 +37,35 @@
     "index.js"
   ],
   "dependencies": {
-    "@types/nlcst": "^1.0.0",
-    "nlcst-is-literal": "^2.0.0",
-    "nlcst-to-string": "^3.0.0",
+    "@types/nlcst": "^2.0.0",
+    "nlcst-is-literal": "^3.0.0",
+    "nlcst-to-string": "^4.0.0",
     "nspell": "^2.0.0",
     "quotation": "^2.0.0",
-    "unified": "^10.0.0",
-    "unist-util-visit": "^4.0.0"
+    "unified": "^11.0.0",
+    "unist-util-visit": "^5.0.0"
   },
   "devDependencies": {
     "@types/tape": "^5.0.0",
-    "@types/unist": "^2.0.0",
+    "@types/unist": "^3.0.0",
     "c8": "^8.0.0",
     "dictionary-en": "^3.0.0",
     "dictionary-en-gb": "^2.0.0",
     "prettier": "^3.0.0",
     "remark-cli": "^11.0.0",
     "remark-preset-wooorm": "^9.0.0",
-    "retext": "^8.0.0",
-    "retext-emoji": "^8.0.0",
+    "retext": "^9.0.0",
+    "retext-emoji": "^9.0.0",
     "rimraf": "^3.0.0",
     "tape": "^5.0.0",
     "type-coverage": "^2.0.0",
     "typescript": "^5.0.0",
-    "vfile": "^5.0.0",
+    "vfile": "^6.0.0",
     "xo": "^0.56.0"
   },
   "scripts": {
     "build": "rimraf \"*.d.ts\" && tsc && type-coverage",
-    "format": "remark . -qfo && prettier . -w --loglevel warn && xo --fix",
+    "format": "remark . -qfo && prettier . -w --log-level warn && xo --fix",
     "test-api": "node --conditions development test.js",
     "test-coverage": "c8 --check-coverage --branches 100 --functions 100 --lines 100 --statements 100 --reporter lcov node --conditions development test.js",
     "test": "npm run build && npm run format && npm run test-coverage"
diff --git a/test.js b/test.js
index 51f1ea3..f96ef21 100644
--- a/test.js
+++ b/test.js
@@ -54,26 +54,25 @@ test('should warn for misspelt words', async (t) => {
   const file = await retext().use(retextSpell, enGb).process('color')
 
   t.deepEqual(
-    JSON.parse(JSON.stringify(file.messages)),
-    [
-      {
-        name: '1:1-1:6',
-        message: '`color` is misspelt; did you mean `colon`, `colour`, `Colo`?',
-        reason: '`color` is misspelt; did you mean `colon`, `colour`, `Colo`?',
-        line: 1,
-        column: 1,
-        source: 'retext-spell',
-        ruleId: 'color',
-        position: {
-          start: {line: 1, column: 1, offset: 0},
-          end: {line: 1, column: 6, offset: 5}
-        },
-        fatal: false,
-        actual: 'color',
-        expected: ['colon', 'colour', 'Colo'],
-        url: 'https://github.com/retextjs/retext-spell#readme'
-      }
-    ],
+    JSON.parse(JSON.stringify({...file.messages[0], ancestors: []})),
+    {
+      ancestors: [],
+      column: 1,
+      fatal: false,
+      message: '`color` is misspelt; did you mean `colon`, `colour`, `Colo`?',
+      line: 1,
+      name: '1:1-1:6',
+      place: {
+        start: {line: 1, column: 1, offset: 0},
+        end: {line: 1, column: 6, offset: 5}
+      },
+      reason: '`color` is misspelt; did you mean `colon`, `colour`, `Colo`?',
+      ruleId: 'color',
+      source: 'retext-spell',
+      actual: 'color',
+      expected: ['colon', 'colour', 'Colo'],
+      url: 'https://github.com/retextjs/retext-spell#readme'
+    },
     'should emit messages'
   )