diff --git a/index.js b/index.js
index 6a2ec80..1eb6c82 100644
--- a/index.js
+++ b/index.js
@@ -8,10 +8,6 @@ class FixedJSDOMEnvironment extends JSDOMEnvironment {
     this.global.TextEncoder = TextEncoder
     this.global.ReadableStream = ReadableStream
 
-    this.global.EventTarget = EventTarget
-    this.global.Event = Event
-    this.global.MessageEvent = MessageEvent
-
     this.global.Blob = Blob
     this.global.Headers = Headers
     this.global.FormData = FormData
diff --git a/index.test.js b/index.test.js
index a14c122..6e3d42f 100644
--- a/index.test.js
+++ b/index.test.js
@@ -88,64 +88,3 @@ test('exposes "structuredClone"', async () => {
   expect(chunks).toEqual(['hello'])
 })
 
-test('exposes "EventTarget"', () => {
-  expect(globalThis).toHaveProperty('EventTarget')
-  expect(() => new EventTarget()).not.toThrow()
-
-  const target = new EventTarget()
-  const symbols = Object.getOwnPropertySymbols(target).map(
-    (symbol) => symbol.description,
-  )
-
-  // EventTarget must not be implemented by JSDOM.
-  expect(symbols).not.toContain('impl')
-
-  // In Node.js, EventTarget keeps events behind the kEvents symbol.
-  expect(symbols).toContain('kEvents')
-})
-
-test('exposes "Event"', () => {
-  expect(globalThis).toHaveProperty('Event')
-  expect(() => new Event('click')).not.toThrow()
-
-  const event = new Event('click')
-  const symbols = Object.getOwnPropertySymbols(event).map(
-    (symbol) => symbol.description,
-  )
-
-  // The "impl" symbol is added by JSDOM.
-  expect(symbols).not.toContain('impl')
-  // Node.js expects events to have the "type" symbol.
-  expect(symbols).toContain('type')
-
-  /**
-   * Perform a basic "isEvent()" check that Node.js has.
-   * @see https://github.com/nodejs/node/blob/3a456c6db802b5b25594d3a9d235d4989e9f7829/lib/internal/event_target.js#L96
-   */
-  expect(event[symbols.find((description) => description === 'type')]).toBe(
-    'click',
-  )
-})
-
-test('exposes "MessageEvent"', () => {
-  expect(globalThis).toHaveProperty('MessageEvent')
-  expect(() => new MessageEvent('click')).not.toThrow()
-
-  const event = new MessageEvent('message')
-  const symbols = Object.getOwnPropertySymbols(event).map(
-    (symbol) => symbol.description,
-  )
-
-  // The "impl" symbol is added by JSDOM.
-  expect(symbols).not.toContain('impl')
-  // Node.js expects events to have the "type" symbol.
-  expect(symbols).toContain('type')
-
-  /**
-   * Perform a basic "isEvent()" check that Node.js has.
-   * @see https://github.com/nodejs/node/blob/3a456c6db802b5b25594d3a9d235d4989e9f7829/lib/internal/event_target.js#L96
-   */
-  expect(event[symbols.find((description) => description === 'type')]).toBe(
-    'message',
-  )
-})