diff --git a/src/lib/webworker.generated.d.ts b/src/lib/webworker.generated.d.ts
index 6db86d71b2a..56c8cc84367 100644
--- a/src/lib/webworker.generated.d.ts
+++ b/src/lib/webworker.generated.d.ts
@@ -3,6 +3,10 @@
 /// IE Worker APIs
 /////////////////////////////
 
+interface Algorithm {
+    name: string;
+}
+
 interface EventInit {
     bubbles?: boolean;
     cancelable?: boolean;
@@ -18,6 +22,10 @@ interface IDBObjectStoreParameters {
     keyPath?: IDBKeyPath;
 }
 
+interface KeyAlgorithm {
+    name?: string;
+}
+
 interface EventListener {
     (evt: Event): void;
 }
@@ -107,6 +115,18 @@ declare var Coordinates: {
     new(): Coordinates;
 }
 
+interface CryptoKey {
+    readonly algorithm: KeyAlgorithm;
+    readonly extractable: boolean;
+    readonly type: string;
+    readonly usages: string[];
+}
+
+declare var CryptoKey: {
+    prototype: CryptoKey;
+    new(): CryptoKey;
+}
+
 interface DOMError {
     readonly name: string;
     toString(): string;
@@ -1178,7 +1198,7 @@ declare var console: Console;
 declare function addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
 declare function addEventListener(type: "message", listener: (ev: MessageEvent) => any, useCapture?: boolean): void;
 declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+type AlgorithmIdentifier = string | Algorithm;
 type IDBKeyPath = string;
 type IDBValidKey = number | string | Date | IDBArrayKey;
-type BufferSource = ArrayBuffer | ArrayBufferView;
-type MouseWheelEvent = WheelEvent;
\ No newline at end of file
+type BufferSource = ArrayBuffer | ArrayBufferView;
\ No newline at end of file