diff --git a/TODO.md b/TODO.md
index 4e30728..f4dd701 100644
--- a/TODO.md
+++ b/TODO.md
@@ -16,6 +16,8 @@ Important: deleting a follower should do more that just delete the object, see h
 
 Add support for rel="me" links, see https://codeberg.org/grunfink/snac2/issues/124 and https://streetpass.social
 
+Hide followers-only replies to unknown accounts, see https://codeberg.org/grunfink/snac2/issues/123
+
 Integrate "Ability to federate with hidden networks" see https://codeberg.org/grunfink/snac2/issues/93
 
 Integrate "Added handling for International Domain Names" PR https://codeberg.org/grunfink/snac2/pulls/104