diff --git a/src/util/ActivityFlags.js b/src/util/ActivityFlags.js
index 237ec12e7f82..e874ed2119c3 100644
--- a/src/util/ActivityFlags.js
+++ b/src/util/ActivityFlags.js
@@ -23,6 +23,9 @@ class ActivityFlags extends BitField {}
  * * `JOIN_REQUEST`
  * * `SYNC`
  * * `PLAY`
+ * * `PARTY_PRIVACY_FRIENDS`
+ * * `PARTY_PRIVACY_VOICE_CHANNEL`
+ * * `EMBEDDED`
  * @type {Object}
  * @see {@link https://discord.com/developers/docs/topics/gateway#activity-object-activity-flags}
  */
@@ -33,6 +36,9 @@ ActivityFlags.FLAGS = {
   JOIN_REQUEST: 1 << 3,
   SYNC: 1 << 4,
   PLAY: 1 << 5,
+  PARTY_PRIVACY_FRIENDS: 1 << 6,
+  PARTY_PRIVACY_VOICE_CHANNEL: 1 << 7,
+  EMBEDDED: 1 << 8,
 };
 
 module.exports = ActivityFlags;
diff --git a/typings/index.d.ts b/typings/index.d.ts
index 3dec637bdb4d..d995f44bd2ba 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -3048,7 +3048,16 @@ export interface WebhookFields extends PartialWebhookFields {
 
 //#region Typedefs
 
-export type ActivityFlagsString = 'INSTANCE' | 'JOIN' | 'SPECTATE' | 'JOIN_REQUEST' | 'SYNC' | 'PLAY';
+export type ActivityFlagsString =
+  | 'INSTANCE'
+  | 'JOIN'
+  | 'SPECTATE'
+  | 'JOIN_REQUEST'
+  | 'SYNC'
+  | 'PLAY'
+  | 'PARTY_PRIVACY_FRIENDS'
+  | 'PARTY_PRIVACY_VOICE_CHANNEL'
+  | 'EMBEDDED';
 
 export type ActivitiesOptions = Omit<ActivityOptions, 'shardId'>;