diff --git a/src/activitypub/mocks.js b/src/activitypub/mocks.js
index 982a840fee..a19a59cdff 100644
--- a/src/activitypub/mocks.js
+++ b/src/activitypub/mocks.js
@@ -134,10 +134,7 @@ Mocks.actor = async (uid) => {
 	}
 
 	return {
-		'@context': [
-			'https://www.w3.org/ns/activitystreams',
-			'https://w3id.org/security/v1',
-		],
+		'@context': 'https://www.w3.org/ns/activitystreams',
 		id: `${nconf.get('url')}/uid/${uid}`,
 		url: `${nconf.get('url')}/user/${userslug}`,
 		followers: `${nconf.get('url')}/user/${userslug}/followers`,
@@ -187,6 +184,7 @@ Mocks.note = async (post) => {
 	}
 
 	const object = {
+		'@context': 'https://www.w3.org/ns/activitystreams',
 		id,
 		type: 'Note',
 		to,
diff --git a/src/controllers/activitypub/actors.js b/src/controllers/activitypub/actors.js
index 48cca7a6ca..4cd9fe240a 100644
--- a/src/controllers/activitypub/actors.js
+++ b/src/controllers/activitypub/actors.js
@@ -13,10 +13,7 @@ Actors.application = async function (req, res) {
 	const name = meta.config.title || 'NodeBB';
 
 	res.status(200).json({
-		'@context': [
-			'https://www.w3.org/ns/activitystreams',
-			'https://w3id.org/security/v1',
-		],
+		'@context': 'https://www.w3.org/ns/activitystreams',
 		id: `${nconf.get('url')}/actor`,
 		url: `${nconf.get('url')}/actor`,
 		inbox: `${nconf.get('url')}/inbox`,