1 files changed, 1 insertions, 0 deletions

diff --git a/README.md b/README.md
index fbb2897..0ee6039 100644
--- a/README.md
+++ b/README.md
@@ -129,6 +129,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
 | `10005`       | Public chats list          | [51](51.md)              |
 | `10006`       | Blocked relays list        | [51](51.md)              |
 | `10007`       | Search relays list         | [51](51.md)              |
+| `10009`       | User groups                | [51](51.md), [29](29.md) |
 | `10015`       | Interests list             | [51](51.md)              |
 | `10030`       | User emoji list            | [51](51.md)              |
 | `10096`       | File storage server list   | [96](96.md)              |