diff --git a/package.json b/package.json
index 1871388793..b61901fc15 100644
--- a/package.json
+++ b/package.json
@@ -46,22 +46,22 @@
 		"human-signals": "^3.0.1",
 		"is-stream": "^3.0.0",
 		"merge-stream": "^2.0.0",
-		"npm-run-path": "^5.0.1",
+		"npm-run-path": "^5.1.0",
 		"onetime": "^6.0.0",
-		"signal-exit": "^3.0.5",
+		"signal-exit": "^3.0.7",
 		"strip-final-newline": "^3.0.0"
 	},
 	"devDependencies": {
-		"@types/node": "^16.11.7",
-		"ava": "^3.15.0",
-		"c8": "^7.10.0",
+		"@types/node": "^17.0.17",
+		"ava": "^4.0.1",
+		"c8": "^7.11.0",
 		"get-node": "^12.0.0",
 		"is-running": "^2.1.0",
 		"p-event": "^5.0.1",
 		"semver": "^7.3.5",
 		"tempfile": "^4.0.0",
-		"tsd": "^0.18.0",
-		"xo": "^0.46.4"
+		"tsd": "^0.19.1",
+		"xo": "^0.48.0"
 	},
 	"c8": {
 		"reporter": [
@@ -73,5 +73,11 @@
 			"**/test.js",
 			"**/test/**"
 		]
+	},
+	"xo": {
+		"rules": {
+			"unicorn/no-empty-file": "off",
+			"@typescript-eslint/ban-types": "off"
+		}
 	}
 }
diff --git a/test/command.js b/test/command.js
index 0db7ab9c49..b020d7a2ae 100644
--- a/test/command.js
+++ b/test/command.js
@@ -4,7 +4,7 @@ import {fileURLToPath} from 'node:url';
 import test from 'ava';
 import {execa, execaSync, execaCommand, execaCommandSync} from '../index.js';
 
-process.env.PATH = fileURLToPath(new URL('./fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
+process.env.PATH = fileURLToPath(new URL('fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
 
 const command = async (t, expected, ...args) => {
 	const {command: failCommand} = await t.throwsAsync(execa('fail.js', args));
diff --git a/test/error.js b/test/error.js
index a9c7746f86..ae7f34b71f 100644
--- a/test/error.js
+++ b/test/error.js
@@ -8,7 +8,7 @@ import {execa, execaSync} from '../index.js';
 
 const pExec = promisify(childProcess.exec);
 
-process.env.PATH = fileURLToPath(new URL('./fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
+process.env.PATH = fileURLToPath(new URL('fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
 
 const TIMEOUT_REGEXP = /timed out after/;
 
diff --git a/test/helpers/override-promise.js b/test/helpers/override-promise.js
index f69bb8ae5d..e601a88549 100644
--- a/test/helpers/override-promise.js
+++ b/test/helpers/override-promise.js
@@ -1,7 +1,7 @@
 // Can't use `test.before`, because `ava` needs `Promise`.
 const nativePromise = Promise;
 global.Promise = class BrokenPromise {
-	then() {
+	then() { // eslint-disable-line unicorn/no-thenable
 		throw new Error('error');
 	}
 };
diff --git a/test/kill.js b/test/kill.js
index c26c58d494..c0a02bb045 100644
--- a/test/kill.js
+++ b/test/kill.js
@@ -6,7 +6,7 @@ import {pEvent} from 'p-event';
 import isRunning from 'is-running';
 import {execa, execaSync} from '../index.js';
 
-process.env.PATH = fileURLToPath(new URL('./fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
+process.env.PATH = fileURLToPath(new URL('fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
 
 const TIMEOUT_REGEXP = /timed out after/;
 
diff --git a/test/node.js b/test/node.js
index eeead60823..31a132a792 100644
--- a/test/node.js
+++ b/test/node.js
@@ -5,7 +5,7 @@ import test from 'ava';
 import {pEvent} from 'p-event';
 import {execaNode} from '../index.js';
 
-process.env.PATH = fileURLToPath(new URL('./fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
+process.env.PATH = fileURLToPath(new URL('fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
 
 async function inspectMacro(t, input) {
 	const originalArgv = process.execArgv;
diff --git a/test/override-promise.js b/test/override-promise.js
index 4c200e37f4..986316e3a4 100644
--- a/test/override-promise.js
+++ b/test/override-promise.js
@@ -10,7 +10,7 @@ import {execa} from '../index.js';
 
 restorePromise();
 
-process.env.PATH = fileURLToPath(new URL('./fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
+process.env.PATH = fileURLToPath(new URL('fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
 
 test('should work with third-party Promise', async t => {
 	const {stdout} = await execa('noop.js', ['foo']);
diff --git a/test/promise.js b/test/promise.js
index 9f52892e7c..c32e91346d 100644
--- a/test/promise.js
+++ b/test/promise.js
@@ -4,7 +4,7 @@ import {fileURLToPath} from 'node:url';
 import test from 'ava';
 import {execa} from '../index.js';
 
-process.env.PATH = fileURLToPath(new URL('./fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
+process.env.PATH = fileURLToPath(new URL('fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
 
 test('promise methods are not enumerable', t => {
 	const descriptors = Object.getOwnPropertyDescriptors(execa('noop.js'));
diff --git a/test/stream.js b/test/stream.js
index 7788ae99dc..b3341aafdc 100644
--- a/test/stream.js
+++ b/test/stream.js
@@ -9,7 +9,7 @@ import getStream from 'get-stream';
 import tempfile from 'tempfile';
 import {execa, execaSync} from '../index.js';
 
-process.env.PATH = fileURLToPath(new URL('./fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
+process.env.PATH = fileURLToPath(new URL('fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
 
 test('buffer', async t => {
 	const {stdout} = await execa('noop.js', ['foo'], {encoding: null});
@@ -74,7 +74,8 @@ test('input can be a Stream', async t => {
 test('you can write to child.stdin', async t => {
 	const subprocess = execa('stdin.js');
 	subprocess.stdin.end('unicorns');
-	t.is((await subprocess).stdout, 'unicorns');
+	const {stdout} = await subprocess;
+	t.is(stdout, 'unicorns');
 });
 
 test('input option can be a String - sync', t => {
diff --git a/test/test.js b/test/test.js
index d24607631d..e49e4e846b 100644
--- a/test/test.js
+++ b/test/test.js
@@ -7,7 +7,7 @@ import getNode from 'get-node';
 import semver from 'semver';
 import {execa, execaSync} from '../index.js';
 
-process.env.PATH = fileURLToPath(new URL('./fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
+process.env.PATH = fileURLToPath(new URL('fixtures', import.meta.url)) + path.delimiter + process.env.PATH;
 process.env.FOO = 'foo';
 
 const ENOENT_REGEXP = process.platform === 'win32' ? /failed with exit code 1/ : /spawn.* ENOENT/;
@@ -148,8 +148,10 @@ test('child_process.spawnSync() errors are propagated with a correct shape', t =
 
 test('do not try to consume streams twice', async t => {
 	const subprocess = execa('noop.js', ['foo']);
-	t.is((await subprocess).stdout, 'foo');
-	t.is((await subprocess).stdout, 'foo');
+	const {stdout} = await subprocess;
+	const {stdout: stdout2} = await subprocess;
+	t.is(stdout, 'foo');
+	t.is(stdout2, 'foo');
 });
 
 test('use relative path with \'..\' chars', async t => {