diff --git a/typings/index.d.ts b/typings/index.d.ts
index 5820f6d..34affd9 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -6398,6 +6398,12 @@ export interface WebSocketProperties {
   os?: string;
   browser?: string;
   device?: string;
+  /** @deprecated Use {@link os} instead. */
+  $os?: string;
+  /** @deprecated Use {@link browser} instead. */
+  $browser?: string;
+  /** @deprecated Use {@link device} instead. */
+  $device?: string;
 }
 
 export interface WidgetActivity {