diff --git a/Feature-Matrix.md b/Feature-Matrix.md
index 4b7a58e..164e65e 100644
--- a/Feature-Matrix.md
+++ b/Feature-Matrix.md
@@ -4,7 +4,6 @@
 | addDevice                           | ✅ | ❌ | ❌
 | block                               | ✅ | ❌ | ✅<sup>3</sup>
 | daemon<sup>2</sup>                  | ✅ | ✅ | ✅
-| deleteGroupAvatar                   | ❌ | ❌ | ❌<sup>20</sup>
 | getContactNumber                    | ❌ | ❌ | ✅
 | getObjectPath                       | ❌ | ❌ | ✅
 | getUserStatus                       | ✅ | ✅ | ✅<sup>1, 13</sup>
@@ -61,7 +60,7 @@
 | updateContact                       | ✅ | ❌ | ✅<sup>10</sup>
 | >   setContactName                  | ✅ | ❌ | ✅
 | >   setExpirationTimer              | ✅ | ❌ | ✅<sup>1</sup>
-| updateGroup                         | ✅ | ❌ | ✅
+| updateGroup                         | ✅ | ❌ | ✅<sup>20</sup>
 | updateProfile                       | ✅ | ❌ | ✅
 | uploadStickerPack                   | ✅ | ❌ | ❌
 | verify                              | ✅ | ❌ | ✅<sup>18</sup>
@@ -82,7 +81,6 @@
 # TODO
 | feature | plaintext CLI | json CLI<sup>8</sup> | dbus |
 |---------|:-------------:|:--------:|------|
-| deleteGroupAvatar                   | ❌ | ❌ | ❌<sup>20</sup>
 | Call messages                       | ❌ | ❌ | ❌
 | Attachment progress listener        | ❌ | ❌ | ❌
 | Payment Notifications               | ❌ | ❌ | ❌
@@ -166,4 +164,4 @@
 17. Provided via the `--number` option
 18. Uses `org.asamk.SignalControl` rather than `org.asamk.Signal` 
 19. Provided indirectly by `getGroupIds` and a series of calls to `getGroupMembers`, `getGroupName` and `isGroupBlocked`
-20. Currently the only means to delete a group avatar is to delete the entire group
\ No newline at end of file
+20. Send the name of a zero-length file to delete the group avatar
\ No newline at end of file