diff --git a/packages/@hec.js/api/lib/src/routing/request.js b/packages/@hec.js/api/lib/src/routing/request.js
index de64c76..ef9cd9f 100644
--- a/packages/@hec.js/api/lib/src/routing/request.js
+++ b/packages/@hec.js/api/lib/src/routing/request.js
@@ -41,7 +41,7 @@ export class ApiRequest extends Request {
   
   /**
    * @param { string } key 
-   * @param { string | undefined } value 
+   * @param { any } value 
    * @returns { void | any }
    */
   prop(key, value = undefined) {
diff --git a/packages/@hec.js/api/lib/types/src/routing/request.d.ts b/packages/@hec.js/api/lib/types/src/routing/request.d.ts
index 76aab50..b6fd3a4 100644
--- a/packages/@hec.js/api/lib/types/src/routing/request.d.ts
+++ b/packages/@hec.js/api/lib/types/src/routing/request.d.ts
@@ -18,10 +18,10 @@ export class ApiRequest extends Request {
     cookie(key: string): string;
     /**
      * @param { string } key
-     * @param { string | undefined } value
+     * @param { any } value
      * @returns { void | any }
      */
-    prop(key: string, value?: string | undefined): void | any;
+    prop(key: string, value?: any): void | any;
     /**
      * @returns { Promise<Uint8Array | { [key: string]: any } | string> }
      */