diff --git a/ui/jest.polyfills.ts b/ui/jest.polyfills.ts
index 94ad52b31..597b8c0eb 100644
--- a/ui/jest.polyfills.ts
+++ b/ui/jest.polyfills.ts
@@ -9,15 +9,19 @@
  * you don't want to deal with this.
  */
 
+const { performance } = require('node:perf_hooks');
 const { TextDecoder, TextEncoder } = require('node:util');
 const { TransformStream } = require('node:stream/web');
 const { BroadcastChannel } = require('node:worker_threads');
+const { clearImmediate } = require('node:timers');
 
 Object.defineProperties(globalThis, {
     TextDecoder: { value: TextDecoder },
     TextEncoder: { value: TextEncoder },
     TransformStream: { value: TransformStream },
     BroadcastChannel: { value: BroadcastChannel },
+    clearImmediate: { value: clearImmediate },
+    performance: { value: performance },
 });
 
 const { Blob } = require('node:buffer');
diff --git a/ui/src/components/DeleteModal/DeleteModal.test.tsx b/ui/src/components/DeleteModal/DeleteModal.test.tsx
index 37de666b3..dbd8dbc4d 100644
--- a/ui/src/components/DeleteModal/DeleteModal.test.tsx
+++ b/ui/src/components/DeleteModal/DeleteModal.test.tsx
@@ -5,7 +5,6 @@ import { http, HttpResponse } from 'msw';
 import DeleteModal from './DeleteModal';
 import { server } from '../../mocks/server';
 
-jest.mock('immutability-helper');
 jest.mock('../../util/util');
 
 const handleClose = jest.fn();
diff --git a/ui/src/components/table/tests/TableWrapper.test.tsx b/ui/src/components/table/tests/TableWrapper.test.tsx
index f625a438c..f420e6271 100644
--- a/ui/src/components/table/tests/TableWrapper.test.tsx
+++ b/ui/src/components/table/tests/TableWrapper.test.tsx
@@ -14,8 +14,6 @@ import {
     SIMPLE_NAME_TABLE_MOCK_DATA,
 } from '../stories/configMockups';
 
-jest.mock('immutability-helper');
-
 const handleRequestModalOpen = jest.fn();
 const handleOpenPageStyleDialog = jest.fn();