diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index f44422eee..1e9c83879 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -1701,14 +1701,6 @@ interface SecurityPolicyViolationEventInit extends EventInit {
     violatedDirective?: string;
 }
 
-interface ServiceWorkerMessageEventInit extends EventInit {
-    data?: any;
-    lastEventId?: string;
-    origin?: string;
-    ports?: MessagePort[] | null;
-    source?: ServiceWorker | MessagePort | null;
-}
-
 interface ShadowRootInit {
     delegatesFocus?: boolean;
     mode: ShadowRootMode;
@@ -4727,7 +4719,6 @@ interface Document extends Node, DocumentAndElementEventHandlers, DocumentOrShad
     createEvent(eventInterface: "SVGZoomEvent"): SVGZoomEvent;
     createEvent(eventInterface: "SVGZoomEvents"): SVGZoomEvent;
     createEvent(eventInterface: "SecurityPolicyViolationEvent"): SecurityPolicyViolationEvent;
-    createEvent(eventInterface: "ServiceWorkerMessageEvent"): ServiceWorkerMessageEvent;
     createEvent(eventInterface: "SpeechRecognitionErrorEvent"): SpeechRecognitionErrorEvent;
     createEvent(eventInterface: "SpeechRecognitionEvent"): SpeechRecognitionEvent;
     createEvent(eventInterface: "SpeechSynthesisErrorEvent"): SpeechSynthesisErrorEvent;
@@ -4977,7 +4968,6 @@ interface DocumentEvent {
     createEvent(eventInterface: "SVGZoomEvent"): SVGZoomEvent;
     createEvent(eventInterface: "SVGZoomEvents"): SVGZoomEvent;
     createEvent(eventInterface: "SecurityPolicyViolationEvent"): SecurityPolicyViolationEvent;
-    createEvent(eventInterface: "ServiceWorkerMessageEvent"): ServiceWorkerMessageEvent;
     createEvent(eventInterface: "SpeechRecognitionErrorEvent"): SpeechRecognitionErrorEvent;
     createEvent(eventInterface: "SpeechRecognitionEvent"): SpeechRecognitionEvent;
     createEvent(eventInterface: "SpeechSynthesisErrorEvent"): SpeechSynthesisErrorEvent;
@@ -14928,22 +14918,6 @@ declare var ServiceWorkerContainer: {
     new(): ServiceWorkerContainer;
 };
 
-/** This ServiceWorker API interface contains information about an event sent to a ServiceWorkerContainer target. This extends the default message event to allow setting a ServiceWorker object as the source of a message. The event object is accessed via the handler function of a message event, when fired by a message received from a service worker.
- * @deprecated In modern browsers, this interface has been deprecated. Service worker messages will now use the MessageEvent interface, for consistency with other web messaging features.
- */
-interface ServiceWorkerMessageEvent extends Event {
-    readonly data: any;
-    readonly lastEventId: string;
-    readonly origin: string;
-    readonly ports: ReadonlyArray<MessagePort> | null;
-    readonly source: ServiceWorker | MessagePort | null;
-}
-
-declare var ServiceWorkerMessageEvent: {
-    prototype: ServiceWorkerMessageEvent;
-    new(type: string, eventInitDict?: ServiceWorkerMessageEventInit): ServiceWorkerMessageEvent;
-};
-
 interface ServiceWorkerRegistrationEventMap {
     "updatefound": Event;
 }
diff --git a/inputfiles/removedTypes.json b/inputfiles/removedTypes.json
index 725ceee08..8b41dfcce 100644
--- a/inputfiles/removedTypes.json
+++ b/inputfiles/removedTypes.json
@@ -276,6 +276,7 @@
                     }
                 }
             },
+            "ServiceWorkerMessageEvent": null,
             "ShadowRoot": {
                 "properties": {
                     "property": {