diff --git a/index.html b/index.html
index 647a3596..99d2976e 100644
--- a/index.html
+++ b/index.html
@@ -715,6 +715,17 @@ <h2>
             </td>
           </tr>
 
+          <tr>
+            <td>
+<code>content-type</code>
+            </td>
+            <td>
+Specifies a type of content object (other than a DID Document) to be returned
+from the target DID registry. Note: This parameter may not be supported by
+all DID methods.
+            </td>
+          </tr>
+
           <tr>
             <td>
 <code>version-time</code>
@@ -725,6 +736,18 @@ <h2>
 parameter may not be supported by all DID methods.
             </td>
           </tr>
+
+          <tr>
+            <td>
+<code>content-id</code>
+            </td>
+            <td>
+Specifies the method-specific identifier of a content object (other than a DID
+Document) to be returned from the target DID registry. Note: This parameter
+may not be supported by all DID methods.
+            </td>
+          </tr>
+
         </tbody>
       </table>