diff --git a/lib/afterAll.decorator.ts b/lib/afterAll.decorator.ts
index f885553..6f06589 100644
--- a/lib/afterAll.decorator.ts
+++ b/lib/afterAll.decorator.ts
@@ -14,7 +14,7 @@ export interface AfterAllDecoratorOptions<T> {
  * Run method after all tests in the suite.
  * Target class should be marked by @suite decorator.
  */
-export const afterAll = <T = unknown>(options?: AfterAllDecoratorOptions<T>) =>
+export const afterAll = <T = void>(options?: AfterAllDecoratorOptions<T>) =>
   function (originalMethod: TestMethod<T>, context: ClassMethodDecoratorContext) {
     context.addInitializer(function () {
       const decoratedBeforeAll = decoratePlaywrightTest<T>(
diff --git a/lib/afterEach.decorator.ts b/lib/afterEach.decorator.ts
index b25cc39..7bbb8d8 100644
--- a/lib/afterEach.decorator.ts
+++ b/lib/afterEach.decorator.ts
@@ -14,7 +14,7 @@ export interface AfterEachDecoratorOptions<T> {
  * Run method after each test in suite.
  * Target class should be marked by @suite decorator.
  */
-export const afterEach = <T = unknown>(options?: AfterEachDecoratorOptions<T>) =>
+export const afterEach = <T = void>(options?: AfterEachDecoratorOptions<T>) =>
   function (originalMethod: TestMethod<T>, context: ClassMethodDecoratorContext) {
     context.addInitializer(function () {
       const decoratedBeforeEach = decoratePlaywrightTest<T>(
diff --git a/lib/beforeAll.decorator.ts b/lib/beforeAll.decorator.ts
index d2a3a58..aaafad1 100644
--- a/lib/beforeAll.decorator.ts
+++ b/lib/beforeAll.decorator.ts
@@ -14,7 +14,7 @@ export interface BeforeAllDecoratorOptions<T> {
  * Run method before all tests in the suite.
  * Target class should be marked by @suite decorator.
  */
-export const beforeAll = <T = unknown>(options?: BeforeAllDecoratorOptions<T>) =>
+export const beforeAll = <T = void>(options?: BeforeAllDecoratorOptions<T>) =>
   function (originalMethod: TestMethod<T>, context: ClassMethodDecoratorContext) {
     context.addInitializer(function () {
       const decoratedBeforeAll = decoratePlaywrightTest<T>(
diff --git a/lib/beforeEach.decorator.ts b/lib/beforeEach.decorator.ts
index dba0b4a..5dd59e1 100644
--- a/lib/beforeEach.decorator.ts
+++ b/lib/beforeEach.decorator.ts
@@ -14,7 +14,7 @@ export interface BeforeEachDecoratorOptions<T> {
  * Run method before each test in the suite.
  * Target class should be marked by @suite decorator.
  */
-export const beforeEach = <T = unknown>(options?: BeforeEachDecoratorOptions<T>) =>
+export const beforeEach = <T = void>(options?: BeforeEachDecoratorOptions<T>) =>
   function (originalMethod: TestMethod<T>, context: ClassMethodDecoratorContext) {
     context.addInitializer(function () {
       const decoratedBeforeEach = decoratePlaywrightTest<T>(
diff --git a/lib/common.ts b/lib/common.ts
index 601ae54..b64b3c9 100644
--- a/lib/common.ts
+++ b/lib/common.ts
@@ -8,15 +8,15 @@ import {
 } from '@playwright/test'
 
 export type TestInfo = PlaywrightTestInfo
-export type TestArgs<T = unknown> = T &
+export type TestArgs<T = void> = T &
   PlaywrightTestArgs &
   PlaywrightTestOptions &
   PlaywrightWorkerArgs &
   PlaywrightWorkerOptions
-export type TestMethod<T = any> = (args: TestArgs<T>, testInfo: TestInfo) => void | Promise<void>
+export type TestMethod<T = void> = (args: TestArgs<T>, testInfo: TestInfo) => void | Promise<void>
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 export type TestClass = { new (...args: any[]): any }
 export type TestType<T = any> = PlaywrightTestType<
-  TestArgs & T,
+  TestArgs<T>,
   PlaywrightWorkerArgs & PlaywrightWorkerOptions
 >
diff --git a/lib/test.decorator.ts b/lib/test.decorator.ts
index cde4c21..88d3d09 100644
--- a/lib/test.decorator.ts
+++ b/lib/test.decorator.ts
@@ -96,9 +96,7 @@ export function isTestDecoratedMethod(method: any): method is TestDecoratedMetho
  *
  * Behaviour of decorator can be modified by other decorators using injected `testDecorator` property.
  */
-export const test = <T = unknown>(
-  options: TestDecoratorOptions = {} // @todo inject playwright
-) =>
+export const test = <T = void>(options: TestDecoratorOptions = {}) =>
   function (originalMethod: TestMethod<T>, context: ClassMethodDecoratorContext) {
     const testDecorator = new TestDecorator(originalMethod, options)