diff --git a/packages/discord.js/src/client/websocket/WebSocketShard.js b/packages/discord.js/src/client/websocket/WebSocketShard.js
index c3490ca51..9ffbd9143 100644
--- a/packages/discord.js/src/client/websocket/WebSocketShard.js
+++ b/packages/discord.js/src/client/websocket/WebSocketShard.js
@@ -464,6 +464,10 @@ class WebSocketShard extends EventEmitter {
         // Set the status to reconnecting
         this.status = Status.Reconnecting;
         // Finally, emit the INVALID_SESSION event
+        /**
+         * Emitted when the session has been invalidated.
+         * @event WebSocketShard#invalidSession
+         */
         this.emit(ShardEvents.InvalidSession);
         break;
       case GatewayOpcodes.HeartbeatAck:
diff --git a/packages/discord.js/typings/index.d.ts b/packages/discord.js/typings/index.d.ts
index 590b4ebe6..f0a1369ec 100644
--- a/packages/discord.js/typings/index.d.ts
+++ b/packages/discord.js/typings/index.d.ts
@@ -2178,8 +2178,8 @@ export class SelectMenuInteraction<Cached extends CacheType = CacheType> extends
 }
 
 export interface ShardEventTypes {
-  spawn: [child: ChildProcess];
-  death: [child: ChildProcess];
+  spawn: [process: ChildProcess | Worker];
+  death: [process: ChildProcess | Worker];
   disconnect: [];
   ready: [];
   reconnecting: [];
@@ -2852,6 +2852,7 @@ export interface WebSocketShardEvents {
   ready: [];
   resumed: [];
   invalidSession: [];
+  destroyed: [];
   close: [event: CloseEvent];
   allReady: [unavailableGuilds?: Set<Snowflake>];
 }
diff --git a/packages/discord.js/typings/index.test-d.ts b/packages/discord.js/typings/index.test-d.ts
index 7f4aa2ee7..567d41ad0 100644
--- a/packages/discord.js/typings/index.test-d.ts
+++ b/packages/discord.js/typings/index.test-d.ts
@@ -1,4 +1,5 @@
-import type { ChildProcess } from 'child_process';
+import type { ChildProcess } from 'node:child_process';
+import type { Worker } from 'node:worker_threads';
 import {
   APIInteractionGuildMember,
   APIPartialChannel,
@@ -1470,7 +1471,7 @@ client.on('interactionCreate', async interaction => {
 declare const shard: Shard;
 
 shard.on('death', process => {
-  expectType<ChildProcess>(process);
+  expectType<ChildProcess | Worker>(process);
 });
 
 declare const webSocketShard: WebSocketShard;