diff --git a/addon-test-support/@ember/test-helpers/settled.ts b/addon-test-support/@ember/test-helpers/settled.ts
index 7affd134c..0908ef4f2 100644
--- a/addon-test-support/@ember/test-helpers/settled.ts
+++ b/addon-test-support/@ember/test-helpers/settled.ts
@@ -2,6 +2,8 @@
 import { _backburner } from '@ember/runloop';
 import Ember from 'ember';
 
+import EmberApplicationInstance from '@ember/application/instance';
+
 import { nextTick } from './-utils';
 import waitUntil from './wait-until';
 import { hasPendingTransitions } from './setup-application-context';
@@ -30,6 +32,26 @@ const _internalPendingRequests = (() => {
   return () => 0;
 })();
 
+if (typeof jQuery !== 'undefined' && _internalPendingRequests) {
+  // This exists to ensure that the AJAX listeners setup by Ember itself
+  // (which as of 2.17 are not properly torn down) get cleared and released
+  // when the application is destroyed. Without this, any AJAX requests
+  // that happen _between_ acceptance tests will always share
+  // `pendingRequests`.
+  //
+  // This can be removed once Ember 4.0.0 is released
+  EmberApplicationInstance.reopen({
+    willDestroy(...args: any[]) {
+      jQuery(document).off('ajaxSend', _internalPendingRequests.incrementPendingRequests);
+      jQuery(document).off('ajaxComplete', _internalPendingRequests.decrementPendingRequests);
+
+      _internalPendingRequests.clearPendingRequests();
+
+      this._super(...args);
+    },
+  });
+}
+
 let requests: XMLHttpRequest[];
 
 /**
diff --git a/index.js b/index.js
index 972761643..9167fbb44 100644
--- a/index.js
+++ b/index.js
@@ -6,12 +6,6 @@ const debugTree = BroccoliDebug.buildDebugCallback('ember-test-helpers');
 module.exports = {
   name: require('./package').name,
 
-  included() {
-    this._super.included.apply(this, arguments);
-
-    this.import('vendor/monkey-patches.js', { type: 'test' });
-  },
-
   treeForAddonTestSupport(tree) {
     // intentionally not calling _super here
     // so that can have our `import`'s be
diff --git a/vendor/monkey-patches.js b/vendor/monkey-patches.js
deleted file mode 100644
index 35dac5da8..000000000
--- a/vendor/monkey-patches.js
+++ /dev/null
@@ -1,39 +0,0 @@
-/* globals require, Ember, jQuery */
-
-(() => {
-  if (typeof jQuery !== 'undefined') {
-    let _Ember;
-    if (typeof Ember !== 'undefined') {
-      _Ember = Ember;
-    } else {
-      _Ember = require('ember').default;
-    }
-
-    let pendingRequests;
-    if (Ember.__loader.registry['ember-testing/test/pending_requests']) {
-      // Ember <= 3.1
-      pendingRequests = Ember.__loader.require('ember-testing/test/pending_requests');
-    } else if (Ember.__loader.registry['ember-testing/lib/test/pending_requests']) {
-      // Ember >= 3.2
-      pendingRequests = Ember.__loader.require('ember-testing/lib/test/pending_requests');
-    }
-
-    if (pendingRequests) {
-      // This exists to ensure that the AJAX listeners setup by Ember itself
-      // (which as of 2.17 are not properly torn down) get cleared and released
-      // when the application is destroyed. Without this, any AJAX requests
-      // that happen _between_ acceptance tests will always share
-      // `pendingRequests`.
-      _Ember.Application.reopen({
-        willDestroy() {
-          jQuery(document).off('ajaxSend', pendingRequests.incrementPendingRequests);
-          jQuery(document).off('ajaxComplete', pendingRequests.decrementPendingRequests);
-
-          pendingRequests.clearPendingRequests();
-
-          this._super(...arguments);
-        },
-      });
-    }
-  }
-})();