diff --git a/src/Lib/Activity.php b/src/Lib/Activity.php
index 91195dd83..ce31c86ea 100644
--- a/src/Lib/Activity.php
+++ b/src/Lib/Activity.php
@@ -5047,7 +5047,7 @@ class Activity
             'https://w3id.org/security/data-integrity/v1',
             'https://purl.archive.org/socialweb/webfinger',
             [
-                'fep' => 'https://w3id.org/fep/c390#',
+                'fep' => 'https://w3id.org/fep/ef61#',
                 'aliases' => 'fep:aliases'
             ],
             self::ap_schema($contextType)