Broken link fixed

Author: atikmapari

articles/api-management/api-management-howto-properties.md

@@ -29,7 +29,7 @@ ms.author: danlep
 
 Plain values or secrets can contain [policy expressions](./api-management-policy-expressions.md). For example, the expression `@(DateTime.Now.ToString())` returns a string containing the current date and time.
 
-For details about the named value attributes, see the API Management [REST API reference](/rest/api/apimanagement/2020-06-01-preview/namedvalue/createorupdate).
+For details about the named value attributes, see the API Management [REST API reference](/rest/api/apimanagement/2021-04-01-preview/named-value/create-or-update).
 
 ## Key vault secrets
 
@@ -202,4 +202,3 @@ To delete a named value, select the name and then select **Delete** from the con
     -   [Policy expressions](./api-management-policy-expressions.md)
 
 [api-management-send-results]: ./media/api-management-howto-properties/api-management-send-results.png
-