diff --git a/packages/playwright-ct-react/index.d.ts b/packages/playwright-ct-react/index.d.ts
index 17c946ac1b..ebf7ff473f 100644
--- a/packages/playwright-ct-react/index.d.ts
+++ b/packages/playwright-ct-react/index.d.ts
@@ -34,8 +34,13 @@ export type PlaywrightTestConfig = Omit<BasePlaywrightTestConfig, 'use'> & {
   }
 };
 
+type JsonPrimitive = string | number | boolean | null;
+type JsonValue = JsonPrimitive | JsonObject | JsonArray;
+type JsonArray = JsonValue[];
+type JsonObject = { [Key in string]?: JsonValue };
+
 export interface MountOptions {
-  hooksConfig?: any;
+  hooksConfig?: JsonObject;
 }
 
 interface MountResult extends Locator {
diff --git a/packages/playwright-ct-solid/index.d.ts b/packages/playwright-ct-solid/index.d.ts
index b19433094f..a260249311 100644
--- a/packages/playwright-ct-solid/index.d.ts
+++ b/packages/playwright-ct-solid/index.d.ts
@@ -34,8 +34,13 @@ export type PlaywrightTestConfig = Omit<BasePlaywrightTestConfig, 'use'> & {
   }
 };
 
+type JsonPrimitive = string | number | boolean | null;
+type JsonValue = JsonPrimitive | JsonObject | JsonArray;
+type JsonArray = JsonValue[];
+type JsonObject = { [Key in string]?: JsonValue };
+
 export interface MountOptions {
-  hooksConfig?: any;
+  hooksConfig?: JsonObject;
 }
 
 interface MountResult extends Locator {
diff --git a/packages/playwright-ct-vue/index.d.ts b/packages/playwright-ct-vue/index.d.ts
index 23f6013437..b5e7295c16 100644
--- a/packages/playwright-ct-vue/index.d.ts
+++ b/packages/playwright-ct-vue/index.d.ts
@@ -34,13 +34,18 @@ export type PlaywrightTestConfig = Omit<BasePlaywrightTestConfig, 'use'> & {
   }
 };
 
+type JsonPrimitive = string | number | boolean | null;
+type JsonValue = JsonPrimitive | JsonObject | JsonArray;
+type JsonArray = JsonValue[];
+type JsonObject = { [Key in string]?: JsonValue };
+
 type Slot = string | string[];
 
 export interface MountOptions<Props = Record<string, unknown>> {
   props?: Props,
   slots?: Record<string, Slot> & { default?: Slot };
   on?: Record<string, Function>,
-  hooksConfig?: any,
+  hooksConfig?: JsonObject,
 }
 
 interface MountResult<Props = Record<string, unknown>> extends Locator {