diff --git a/package.json b/package.json
index 9d40bf6..ad5212e 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
 		"docs": "typedoc source/index.ts",
 		"build": "del-cli dist && tsc",
 		"prepare": "npm run build",
-		"//postpublish": "npm run docs && gh-pages --dist docs --no-history --message \"Deploy documentation\"",
+		"postpublish": "npm run docs && gh-pages --dist docs --no-history --message \"Deploy documentation\"",
 		"example": "npm run build && node example.js"
 	},
 	"files": [
@@ -49,7 +49,7 @@
 		"object"
 	],
 	"dependencies": {
-		"@sindresorhus/is": "^4.6.0",
+		"@sindresorhus/is": "^5.0.1",
 		"callsites": "^4.0.0",
 		"dot-prop": "^7.2.0",
 		"lodash.isequal": "^4.5.0",
@@ -59,25 +59,23 @@
 	"devDependencies": {
 		"@sindresorhus/tsconfig": "^3.0.1",
 		"@types/lodash.isequal": "^4.5.6",
-		"@types/node": "^17.0.36",
+		"@types/node": "^17.0.42",
 		"@types/vali-date": "^1.0.0",
-		"ava": "^4.2.0",
+		"ava": "^4.3.0",
 		"c8": "^7.11.3",
 		"del-cli": "^4.0.1",
 		"expect-type": "^0.13.0",
 		"gh-pages": "^4.0.0",
-		"ts-node": "^10.8.0",
-		"typescript": "^4.7.2",
-		"xo": "^0.49.0"
+		"ts-node": "^10.8.1",
+		"typedoc": "^0.22.17",
+		"typescript": "^4.7.3",
+		"xo": "^0.50.0"
 	},
 	"browser": {
 		"./dist/utils/infer-label.js": "./dist/utils/infer-label.browser.js"
 	},
 	"sideEffects": false,
 	"xo": {
-		"parserOptions": {
-			"project": "./tsconfig.xo.json"
-		},
 		"ignores": [
 			"example.js",
 			"dev-only.js",
@@ -95,17 +93,16 @@
 		}
 	},
 	"ava": {
-		"nodeArguments": [
-			"--loader=ts-node/esm",
-			"--experimental-specifier-resolution=node"
-		],
 		"files": [
 			"test/**",
 			"!test/fixtures/**"
 		],
 		"extensions": {
 			"ts": "module"
-		}
+		},
+		"nodeArguments": [
+			"--loader=ts-node/esm"
+		]
 	},
 	"c8": {
 		"reporter": [
diff --git a/source/index.ts b/source/index.ts
index 5eb8175..0cc33d1 100644
--- a/source/index.ts
+++ b/source/index.ts
@@ -116,7 +116,7 @@ const ow = <T>(value: unknown, labelOrPredicate: unknown, predicate?: BasePredic
 
 Object.defineProperties(ow, {
 	isValid: {
-		value(value: unknown, predicate: BasePredicate<T>): boolean {
+		value<T>(value: unknown, predicate: BasePredicate<T>): boolean {
 			try {
 				test(value, '', predicate);
 				return true;
diff --git a/source/predicates/error.ts b/source/predicates/error.ts
index db5e3f0..f802009 100644
--- a/source/predicates/error.ts
+++ b/source/predicates/error.ts
@@ -25,7 +25,7 @@ export class ErrorPredicate extends Predicate<Error> {
 
 	@param expected - Expected message of the Error.
 	*/
-	message(expected: string): this {
+	override message(expected: string): this {
 		return this.addValidator({
 			message: (error, label) => `Expected ${label} message to be \`${expected}\`, got \`${error.message}\``,
 			validator: error => error.message === expected,
diff --git a/source/utils/infer-label.ts b/source/utils/infer-label.ts
index ccc37ed..f1fc6b3 100644
--- a/source/utils/infer-label.ts
+++ b/source/utils/infer-label.ts
@@ -51,14 +51,13 @@ export const inferLabel = (callsites: readonly CallSite[]): void | string => {
 	line = line.slice(columnNumber - 1);
 
 	const match = labelRegex.exec(line);
+	const token = match?.groups?.['label'];
 
-	if (!match?.groups?.label) {
+	if (!token) {
 		// Exit if we didn't find a label
 		return;
 	}
 
-	const token = match.groups.label;
-
 	if (isValidIdentifier(token) || isValidIdentifier(token.split('.').pop())) {
 		return token;
 	}
diff --git a/source/utils/node/is-node.ts b/source/utils/node/is-node.ts
index 7bc54a9..5c50d17 100644
--- a/source/utils/node/is-node.ts
+++ b/source/utils/node/is-node.ts
@@ -1,2 +1,2 @@
-// eslint-disable-next-line node/prefer-global/process
+// eslint-disable-next-line n/prefer-global/process
 export default Boolean(process?.versions?.node);
diff --git a/tsconfig.json b/tsconfig.json
index c489a60..261b545 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,6 +6,11 @@
 	"include": [
 		"source"
 	],
+	"ts-node": {
+		"transpileOnly": true,
+		"files": true,
+		"experimentalResolver": true
+	},
 	"typedocOptions": {
 		"out": "docs",
 		"excludePrivate": true,
diff --git a/tsconfig.xo.json b/tsconfig.xo.json
deleted file mode 100644
index b01049f..0000000
--- a/tsconfig.xo.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-	"extends": "./tsconfig.json",
-	"include": [
-		"test"
-	]
-}