diff --git a/package.json b/package.json
index da63cc86..a4c926f9 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   ],
   "devDependencies": {
     "@types/node": "^20.0.0",
-    "c8": "^8.0.0",
+    "c8": "^9.0.0",
     "hast-util-assert": "^4.0.0",
     "prettier": "^3.0.0",
     "remark-cli": "^11.0.0",
@@ -28,7 +28,7 @@
     "unified": "^11.0.0",
     "unist-util-remove-position": "^5.0.0",
     "vfile": "^6.0.0",
-    "xo": "^0.56.0"
+    "xo": "^0.57.0"
   },
   "scripts": {
     "build": "tsc --build --clean && tsc --build && type-coverage",
diff --git a/packages/rehype-cli/cli.js b/packages/rehype-cli/cli.js
index ba10b6e9..3389866c 100755
--- a/packages/rehype-cli/cli.js
+++ b/packages/rehype-cli/cli.js
@@ -17,7 +17,7 @@ import {rehype} from 'rehype'
 import {args} from 'unified-args'
 
 /** @type {Pack} */
-const proc = JSON.parse(
+const rehypePackage = JSON.parse(
   String(
     await fs.readFile(
       new URL('package.json', resolve('rehype', import.meta.url))
@@ -26,21 +26,21 @@ const proc = JSON.parse(
 )
 
 /** @type {Pack} */
-const cli = JSON.parse(
+const cliPackage = JSON.parse(
   String(await fs.readFile(new URL('package.json', import.meta.url)))
 )
 
 args({
-  description: cli.description,
+  description: cliPackage.description,
   extensions: ['html', 'htm', 'xht', 'xhtml'],
-  ignoreName: '.' + proc.name + 'ignore',
-  name: proc.name,
-  packageField: proc.name,
-  pluginPrefix: proc.name,
+  ignoreName: '.' + rehypePackage.name + 'ignore',
+  name: rehypePackage.name,
+  packageField: rehypePackage.name,
+  pluginPrefix: rehypePackage.name,
   processor: rehype,
-  rcName: '.' + proc.name + 'rc',
+  rcName: '.' + rehypePackage.name + 'rc',
   version: [
-    proc.name + ': ' + proc.version,
-    cli.name + ': ' + cli.version
+    rehypePackage.name + ': ' + rehypePackage.version,
+    cliPackage.name + ': ' + cliPackage.version
   ].join(', ')
 })
diff --git a/packages/rehype-cli/package.json b/packages/rehype-cli/package.json
index 2473e7a4..ba4a4d5f 100644
--- a/packages/rehype-cli/package.json
+++ b/packages/rehype-cli/package.json
@@ -29,12 +29,11 @@
     "cli.js"
   ],
   "dependencies": {
-    "import-meta-resolve": "^3.0.0",
+    "import-meta-resolve": "^4.0.0",
     "rehype": "^13.0.0",
     "unified-args": "^11.0.0"
   },
   "scripts": {},
-  "xo": false,
   "typeCoverage": {
     "atLeast": 100,
     "detail": true,
diff --git a/packages/rehype-parse/lib/index.js b/packages/rehype-parse/lib/index.js
index 926b4b50..9e651a82 100644
--- a/packages/rehype-parse/lib/index.js
+++ b/packages/rehype-parse/lib/index.js
@@ -45,8 +45,8 @@ export default function rehypeParse(options) {
   /**
    * @type {Parser}
    */
-  function parser(doc, file) {
-    return fromHtml(doc, {
+  function parser(document, file) {
+    return fromHtml(document, {
       ...settings,
       onerror: emitParseErrors
         ? function (message) {
diff --git a/packages/rehype-parse/package.json b/packages/rehype-parse/package.json
index f25f32c8..e5bb7521 100644
--- a/packages/rehype-parse/package.json
+++ b/packages/rehype-parse/package.json
@@ -40,7 +40,6 @@
     "unified": "^11.0.0"
   },
   "scripts": {},
-  "xo": false,
   "typeCoverage": {
     "atLeast": 100,
     "detail": true,
diff --git a/packages/rehype-stringify/package.json b/packages/rehype-stringify/package.json
index c64b4042..e49e3bc9 100644
--- a/packages/rehype-stringify/package.json
+++ b/packages/rehype-stringify/package.json
@@ -42,7 +42,6 @@
     "unified": "^11.0.0"
   },
   "scripts": {},
-  "xo": false,
   "typeCoverage": {
     "atLeast": 100,
     "detail": true,
diff --git a/packages/rehype/package.json b/packages/rehype/package.json
index 6f579127..fb340e76 100644
--- a/packages/rehype/package.json
+++ b/packages/rehype/package.json
@@ -41,7 +41,6 @@
     "index.js"
   ],
   "scripts": {},
-  "xo": false,
   "typeCoverage": {
     "atLeast": 100,
     "detail": true,
diff --git a/test/cli.js b/test/cli.js
index 07c15f3d..23658d9f 100644
--- a/test/cli.js
+++ b/test/cli.js
@@ -7,12 +7,12 @@ import {fileURLToPath} from 'node:url'
 const exec = promisify(childProcess.exec)
 
 test('rehype-cli', async function (t) {
-  const bin = fileURLToPath(
+  const binary = fileURLToPath(
     new URL('../packages/rehype-cli/cli.js', import.meta.url)
   )
 
   await t.test('should show help on `--help`', async function () {
-    const result = await exec(bin + ' --help')
+    const result = await exec(binary + ' --help')
 
     assert.equal(
       result.stdout,
@@ -66,7 +66,7 @@ test('rehype-cli', async function (t) {
   })
 
   await t.test('should show version on `--version`', async function () {
-    const result = await exec(bin + ' --version')
+    const result = await exec(binary + ' --version')
 
     assert.match(result.stdout, /rehype: \d+\.\d+\.\d+/)
     assert.match(result.stdout, /rehype-cli: \d+\.\d+\.\d+/)