fix dead link

docs/book/src/topics/identities.md

@@ -138,7 +138,7 @@ This option is only available when the cluster is managed from a Kubernetes clus
 #### Prerequisites
 
 1. [Create](https://learn.microsoft.com/azure/active-directory/managed-identities-azure-resources/how-manage-user-assigned-managed-identities?pivots=identity-mi-methods-azp#create-a-user-assigned-managed-identity) a user-assigned managed identity in Azure.
-2. [Create a role assignment](https://learn.microsoft.com/azure/active-directory/managed-identities-azure-resources/howto-assign-access-portal#use-azure-rbac-to-assign-a-managed-identity-access-to-another-resource) to give the identity Contributor access to the Azure subscription where the workload cluster will be created.
+2. [Create a role assignment](https://learn.microsoft.com/en-us/entra/identity/managed-identities-azure-resources/how-to-assign-access-azure-resource?pivots=identity-mi-access-portal#use-azure-rbac-to-assign-a-managed-identity-access-to-another-resource-using-the-azure-portal) to give the identity Contributor access to the Azure subscription where the workload cluster will be created.
 3. Configure the identity on the management cluster nodes by adding it to each worker node VM. If using AKS as the management cluster see [these instructions](https://learn.microsoft.com/azure/aks/use-managed-identity).
 
 #### Creating the AzureClusterIdentity