diff --git a/packages/playwright-ct-react/hooks.d.ts b/packages/playwright-ct-react/hooks.d.ts
index bd84d3bcfe..31cbda4c23 100644
--- a/packages/playwright-ct-react/hooks.d.ts
+++ b/packages/playwright-ct-react/hooks.d.ts
@@ -19,8 +19,8 @@ type JsonValue = JsonPrimitive | JsonObject | JsonArray;
 type JsonArray = JsonValue[];
 type JsonObject = { [Key in string]?: JsonValue };
 export declare function beforeMount<HooksConfig extends JsonObject>(
-  callback: (params: { hooksConfig: HooksConfig; App: () => JSX.Element }) => Promise<void | JSX.Element>
+  callback: (params: { hooksConfig?: HooksConfig; App: () => JSX.Element }) => Promise<void | JSX.Element>
 ): void;
 export declare function afterMount<HooksConfig extends JsonObject>(
-  callback: (params: { hooksConfig: HooksConfig }) => Promise<void>
+  callback: (params: { hooksConfig?: HooksConfig }) => Promise<void>
 ): void;
diff --git a/packages/playwright-ct-react17/hooks.d.ts b/packages/playwright-ct-react17/hooks.d.ts
index bd84d3bcfe..31cbda4c23 100644
--- a/packages/playwright-ct-react17/hooks.d.ts
+++ b/packages/playwright-ct-react17/hooks.d.ts
@@ -19,8 +19,8 @@ type JsonValue = JsonPrimitive | JsonObject | JsonArray;
 type JsonArray = JsonValue[];
 type JsonObject = { [Key in string]?: JsonValue };
 export declare function beforeMount<HooksConfig extends JsonObject>(
-  callback: (params: { hooksConfig: HooksConfig; App: () => JSX.Element }) => Promise<void | JSX.Element>
+  callback: (params: { hooksConfig?: HooksConfig; App: () => JSX.Element }) => Promise<void | JSX.Element>
 ): void;
 export declare function afterMount<HooksConfig extends JsonObject>(
-  callback: (params: { hooksConfig: HooksConfig }) => Promise<void>
+  callback: (params: { hooksConfig?: HooksConfig }) => Promise<void>
 ): void;
diff --git a/packages/playwright-ct-solid/hooks.d.ts b/packages/playwright-ct-solid/hooks.d.ts
index e4aea76041..048978cd53 100644
--- a/packages/playwright-ct-solid/hooks.d.ts
+++ b/packages/playwright-ct-solid/hooks.d.ts
@@ -21,8 +21,8 @@ type JsonValue = JsonPrimitive | JsonObject | JsonArray;
 type JsonArray = JsonValue[];
 type JsonObject = { [Key in string]?: JsonValue };
 export declare function beforeMount<HooksConfig extends JsonObject>(
-  callback: (params: { hooksConfig: HooksConfig, App: () => JSXElement }) => Promise<void | JSXElement>
+  callback: (params: { hooksConfig?: HooksConfig, App: () => JSXElement }) => Promise<void | JSXElement>
 ): void;
 export declare function afterMount<HooksConfig extends JsonObject>(
-  callback: (params: { hooksConfig: HooksConfig }) => Promise<void>
+  callback: (params: { hooksConfig?: HooksConfig }) => Promise<void>
 ): void;
diff --git a/packages/playwright-ct-svelte/hooks.d.ts b/packages/playwright-ct-svelte/hooks.d.ts
index 8c0fa0933f..1c2107325b 100644
--- a/packages/playwright-ct-svelte/hooks.d.ts
+++ b/packages/playwright-ct-svelte/hooks.d.ts
@@ -21,11 +21,11 @@ type JsonValue = JsonPrimitive | JsonObject | JsonArray;
 type JsonArray = JsonValue[];
 type JsonObject = { [Key in string]?: JsonValue };
 export declare function beforeMount<HooksConfig extends JsonObject>(
-  callback: (params: { hooksConfig: HooksConfig }) => Promise<void>
+  callback: (params: { hooksConfig?: HooksConfig }) => Promise<void>
 ): void;
 export declare function afterMount<HooksConfig extends JsonObject>(
   callback: (params: {
-    hooksConfig: HooksConfig;
+    hooksConfig?: HooksConfig;
     svelteComponent: SvelteComponent;
   }) => Promise<void>
 ): void;
diff --git a/packages/playwright-ct-vue/hooks.d.ts b/packages/playwright-ct-vue/hooks.d.ts
index 6e2c3e1715..3503b0fa37 100644
--- a/packages/playwright-ct-vue/hooks.d.ts
+++ b/packages/playwright-ct-vue/hooks.d.ts
@@ -21,12 +21,12 @@ type JsonValue = JsonPrimitive | JsonObject | JsonArray;
 type JsonArray = JsonValue[];
 type JsonObject = { [Key in string]?: JsonValue };
 export declare function beforeMount<HooksConfig extends JsonObject>(
-  callback: (params: { app: App; hooksConfig: HooksConfig }) => Promise<void>
+  callback: (params: { app: App; hooksConfig?: HooksConfig }) => Promise<void>
 ): void;
 export declare function afterMount<HooksConfig extends JsonObject>(
   callback: (params: {
     app: App;
-    hooksConfig: HooksConfig;
+    hooksConfig?: HooksConfig;
     instance: ComponentPublicInstance;
   }) => Promise<void>
 ): void;
diff --git a/packages/playwright-ct-vue2/hooks.d.ts b/packages/playwright-ct-vue2/hooks.d.ts
index a8482a6c8c..7c422f0595 100644
--- a/packages/playwright-ct-vue2/hooks.d.ts
+++ b/packages/playwright-ct-vue2/hooks.d.ts
@@ -24,13 +24,13 @@ type JsonObject = { [Key in string]?: JsonValue };
 
 export declare function beforeMount<HooksConfig extends JsonObject>(
   callback: (params: { 
-    hooksConfig: HooksConfig, 
+    hooksConfig?: HooksConfig, 
     Vue: VueConstructor<Vue>, 
   }) => Promise<void | ComponentOptions<Vue> & Record<string, unknown>>
 ): void;
 export declare function afterMount<HooksConfig extends JsonObject>(
   callback: (params: {
-    hooksConfig: HooksConfig;
+    hooksConfig?: HooksConfig;
     instance: CombinedVueInstance<
       Vue,
       object,
diff --git a/packages/playwright-test/types/component.d.ts b/packages/playwright-test/types/component.d.ts
index 41ce974c94..88c33fb669 100644
--- a/packages/playwright-test/types/component.d.ts
+++ b/packages/playwright-test/types/component.d.ts
@@ -38,10 +38,10 @@ export type Component = JsxComponent | ObjectComponent | number | string | Array
 
 declare global {
   interface Window {
-    playwrightMount(component: Component, rootElement: Element, hooksConfig: any): Promise<void>;
+    playwrightMount(component: Component, rootElement: Element, hooksConfig?: any): Promise<void>;
     playwrightUnmount(rootElement: Element): Promise<void>;
     playwrightUpdate(rootElement: Element, component: Component): Promise<void>;
-    __pw_hooks_before_mount?: (<HooksConfig>(params: { hooksConfig: HooksConfig; } & any) => Promise<any>)[];
-    __pw_hooks_after_mount?: (<HooksConfig>(params: { hooksConfig: HooksConfig; } & any) => Promise<void>)[];
+    __pw_hooks_before_mount?: (<HooksConfig>(params: { hooksConfig?: HooksConfig; } & any) => Promise<any>)[];
+    __pw_hooks_after_mount?: (<HooksConfig>(params: { hooksConfig?: HooksConfig; } & any) => Promise<void>)[];
   }
 }