diff --git a/charts/ratify/README.md b/charts/ratify/README.md
index 84b52b238..2bfbcd602 100644
--- a/charts/ratify/README.md
+++ b/charts/ratify/README.md
@@ -135,7 +135,8 @@ Values marked `# DEPRECATED` in the `values.yaml` as well as **DEPRECATED** in t
 | azurekeyvault.vaultURI                             | Vault URI for Azure Key Vault                                                                                                                                                                                                                                                                                                                                          | ``                                |
 | azurekeyvault.tenantId                             | Tenant ID of the configured Azure Key Vault resource                                                                                                                                                                                                                                                                                                                   | ``                                |
 | azurekeyvault.certificates                         | An array of certificate objects identified by `name` and `version` (optional) stored in Azure Key Vault                                                                                                                                                                                                                                                                | `[]`                              |
-| azurekeyvault.keys                                 | An array of key objects identified by `name` and `version` (optional) stored in Azure Key Vault                                                                                                                                                                                                                                                                        | `[]`                              |
+| azurekeyvault.keys                                 | An array of key objects identified by `name` and `version` (optional) stored in Azure Key Vault                                                                                                                                                                                                                  | `[]`                              |
+| azurekeyvault.refreshInterval                      | time duration to refresh the certificates/keys. Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". Example: 1h, 30m, 1h30m                                                                                                                                                                                                                   | ``                                |
 | notationCert                                       | **DEPRECATED** Please switch to `notationCerts` to specify an array of verification certificates. Public certificate/certificate chain used to create inline certstore used by Notation verifier.                                                                                                                                                                      | ``                                |
 | akvCertConfig.enabled                              | **DEPRECATED** Please use `azurekeyvault.enabled` instead. Enables/disables Azure Key Vault certificate store. If you are using a custom chart, certificate store should be referenced through a Verifier CR. References in ConfigMap will not be correctly resolved.                                                                                                  | `false`                           |
 | akvCertConfig.vaultURI                             | **DEPRECATED** Please use `azurekeyvault.vaultURI` instead. Vault URI for AKV configured                                                                                                                                                                                                                                                                               | ``                                |