diff --git a/README.md b/README.md
index 0ebb43b..e5b3f0c 100644
--- a/README.md
+++ b/README.md
@@ -112,6 +112,7 @@ A security audit was performed by [SAFE-Erlang-Elixir](https://github.com/SAFE-E
   * [Request Object](https://openid.net/specs/openid-connect-core-1_0.html#RequestObject)
   * [PKCE](https://oauth.net/2/pkce/)
   * [Pushed Authorization Requests](https://datatracker.ietf.org/doc/html/rfc9126)
+  * [Authorization Server Issuer Identification](https://datatracker.ietf.org/doc/html/rfc9207)
 * Token
   * Authorization: `client_secret_basic`, `client_secret_post`,
     `client_secret_jwt`, and `private_key_jwt`
@@ -125,7 +126,7 @@ A security audit was performed by [SAFE-Erlang-Elixir](https://github.com/SAFE-E
 * Logout
   * [RP-Initiated](https://openid.net/specs/openid-connect-rpinitiated-1_0.html)
 * [JWT Secured Authorization Response Mode for OAuth 2.0 (JARM)](https://openid.net/specs/oauth-v2-jarm-final.html)
-* [Demonstrating Proof of Possession (DPoP)](https://www.rfc-editor.org/rfc/rfc9449)
+* [Demonstrating Proof of Possession (DPoP)](https://datatracker.ietf.org/doc/html/rfc9449)
 * [OAuth 2 Purpose Request Parameter](https://cdn.connectid.com.au/specifications/oauth2-purpose-01.html)
 * Profiles
   * [FAPI 2.0 Security Profile](https://openid.bitbucket.io/fapi/fapi-2_0-security-profile.html)