diff --git a/index.json b/index.json
index 821e3d7..127df98 100644
--- a/index.json
+++ b/index.json
@@ -1398,7 +1398,7 @@
     "authors": "Dmitry Skavish <skavish@gmail.com>",
     "status": "DRAFT",
     "discussionsTo": "https://socialhub.activitypub.rocks/t/fep-8c13-context-authority-routing-with-object-integrity-proofs-for-restricted-threads/8446",
-    "relatedFeps": "FEP-7888, FEP-8b32, FEP-1b12, FEP-171b",
+    "relatedFeps": "FEP-7888, FEP-f228, FEP-8b32, FEP-1b12, FEP-171b",
     "dateReceived": "2026-06-27",
     "trackingIssue": "https://codeberg.org/fediverse/fep/issues/870",
     "title": "Context-Authority Routing with Object Integrity Proofs for Restricted Threads",