diff --git a/package.json b/package.json
index 65cc63b..f0be633 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "ember-auto-import": "^2.7.2",
     "ember-cli-babel": "^8.2.0",
     "ember-cli-htmlbars": "^6.3.0",
-    "ember-copy": "^2.0.1",
+    "lodash-es": "^4.17.21",
     "webpack": "^5.91.0"
   },
   "devDependencies": {
diff --git a/tests/dummy/app/components/chart-highstock-interactive.js b/tests/dummy/app/components/chart-highstock-interactive.js
index 9118cb7..02cd531 100644
--- a/tests/dummy/app/components/chart-highstock-interactive.js
+++ b/tests/dummy/app/components/chart-highstock-interactive.js
@@ -2,8 +2,10 @@ import Component from '@glimmer/component';
 import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 
-import { copy } from 'ember-copy';
 import stockData from '../data/stock';
+import cloneDeep from 'lodash-es/cloneDeep';
+
+const clone = window.structuredClone ?? cloneDeep;
 
 export default class BarBasic extends Component {
   @service('dynamic-chart')
@@ -18,7 +20,7 @@ export default class BarBasic extends Component {
     },
   };
 
-  chartData = copy(stockData, true);
+  chartData = clone(stockData);
 
   @action
   updateSeriesData() {
diff --git a/tests/dummy/app/components/chart-line-interactive.js b/tests/dummy/app/components/chart-line-interactive.js
index 9961fdb..52ca7f6 100644
--- a/tests/dummy/app/components/chart-line-interactive.js
+++ b/tests/dummy/app/components/chart-line-interactive.js
@@ -1,8 +1,10 @@
-import { copy } from 'ember-copy';
 import { inject as service } from '@ember/service';
 import Component from '@glimmer/component';
 import commitStats from '../data/commit-stats';
 import { action } from '@ember/object';
+import cloneDeep from 'lodash-es/cloneDeep';
+
+const clone = window.structuredClone ?? cloneDeep;
 
 export default class BarBasic extends Component {
   @service('dynamic-chart')
@@ -28,7 +30,7 @@ export default class BarBasic extends Component {
     },
   };
 
-  chartData = copy(commitStats, true);
+  chartData = clone(commitStats);
 
   @action
   updateSeriesData() {
diff --git a/tests/dummy/app/services/dynamic-chart.js b/tests/dummy/app/services/dynamic-chart.js
index 7cd3ad4..b6fbe68 100644
--- a/tests/dummy/app/services/dynamic-chart.js
+++ b/tests/dummy/app/services/dynamic-chart.js
@@ -1,5 +1,7 @@
-import { copy } from 'ember-copy';
 import Service from '@ember/service';
+import cloneDeep from 'lodash-es/cloneDeep';
+
+const clone = window.structuredClone ?? cloneDeep;
 
 export default class DynamicChart extends Service {
   getRandomInt(min, max) {
@@ -17,7 +19,7 @@ export default class DynamicChart extends Service {
   }
 
   updateSeriesCount(chartData, numSeries) {
-    let chartDataCopy = copy(chartData, true);
+    let chartDataCopy = clone(chartData);
     return chartDataCopy.slice(0, numSeries);
   }
 }
diff --git a/tests/integration/components/high-charts-test.js b/tests/integration/components/high-charts-test.js
index ed33914..69e981f 100644
--- a/tests/integration/components/high-charts-test.js
+++ b/tests/integration/components/high-charts-test.js
@@ -1,8 +1,10 @@
-import { copy } from 'ember-copy';
 import { module, test } from 'qunit';
 import { setupRenderingTest } from 'ember-qunit';
 import { render, settled } from '@ember/test-helpers';
 import { hbs } from 'ember-cli-htmlbars';
+import cloneDeep from 'lodash-es/cloneDeep';
+
+const clone = window.structuredClone ?? cloneDeep;
 
 import {
   lineChartOptions,
@@ -65,7 +67,7 @@ module('Integration | Component | High Charts', function (hooks) {
       .exists({ count: 3 }, 'base series count');
 
     // add a series to chart content
-    let cityDataCopy = copy(cityData, true);
+    let cityDataCopy = clone(cityData);
     cityDataCopy.push({
       name: 'San Francisco',
       data: [
@@ -96,7 +98,7 @@ module('Integration | Component | High Charts', function (hooks) {
       .exists({ count: 3 }, 'base series count');
 
     // remove a series from chart content
-    let cityDataCopy = copy(cityData, true);
+    let cityDataCopy = clone(cityData);
     cityDataCopy = cityDataCopy.slice(0, 2);
 
     this.set('cityData', cityDataCopy);
diff --git a/yarn.lock b/yarn.lock
index 174a731..b201283 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4588,7 +4588,7 @@ ember-cli-babel-plugin-helpers@^1.0.0, ember-cli-babel-plugin-helpers@^1.1.1:
   resolved "https://registry.yarnpkg.com/ember-cli-babel-plugin-helpers/-/ember-cli-babel-plugin-helpers-1.1.1.tgz#5016b80cdef37036c4282eef2d863e1d73576879"
   integrity sha512-sKvOiPNHr5F/60NLd7SFzMpYPte/nnGkq/tMIfXejfKHIhaiIkYFqX8Z9UFTKWLLn+V7NOaby6niNPZUdvKCRw==
 
-ember-cli-babel@^7.10.0, ember-cli-babel@^7.13.0, ember-cli-babel@^7.22.1, ember-cli-babel@^7.23.0, ember-cli-babel@^7.23.1, ember-cli-babel@^7.26.11, ember-cli-babel@^7.26.6, ember-cli-babel@^7.7.3:
+ember-cli-babel@^7.10.0, ember-cli-babel@^7.13.0, ember-cli-babel@^7.23.0, ember-cli-babel@^7.23.1, ember-cli-babel@^7.26.11, ember-cli-babel@^7.26.6, ember-cli-babel@^7.7.3:
   version "7.26.11"
   resolved "https://registry.yarnpkg.com/ember-cli-babel/-/ember-cli-babel-7.26.11.tgz#50da0fe4dcd99aada499843940fec75076249a9f"
   integrity sha512-JJYeYjiz/JTn34q7F5DSOjkkZqy8qwFOOxXfE6pe9yEJqWGu4qErKxlz8I22JoVEQ/aBUO+OcKTpmctvykM9YA==
@@ -4944,13 +4944,6 @@ ember-compatibility-helpers@^1.1.2, ember-compatibility-helpers@^1.2.0:
     fs-extra "^9.1.0"
     semver "^5.4.1"
 
-ember-copy@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/ember-copy/-/ember-copy-2.0.1.tgz#13192b12a250324bb4a8b4547a680b113f4e3041"
-  integrity sha512-N/XFvZszrzyyX4IcNoeK4mJvIItNuONumhPLqi64T8NDjJkxBj4Pq61rvMkJx/9eZ8alzE4I8vYKOLxT0FvRuQ==
-  dependencies:
-    ember-cli-babel "^7.22.1"
-
 ember-load-initializers@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/ember-load-initializers/-/ember-load-initializers-2.1.2.tgz#8a47a656c1f64f9b10cecdb4e22a9d52ad9c7efa"
@@ -7978,6 +7971,11 @@ locate-path@^7.1.0:
   dependencies:
     p-locate "^6.0.0"
 
+lodash-es@^4.17.21:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash-es/-/lodash-es-4.17.21.tgz#43e626c46e6591b7750beb2b50117390c609e3ee"
+  integrity sha512-mKnC+QJ9pWVzv+C4/U3rRsHapFfHvQFoFB92e52xeyGMcX6/OlIl78je1u8vePzYZSkkogMPJ2yjxxsb89cxyw==
+
 lodash._baseflatten@^3.0.0:
   version "3.1.4"
   resolved "https://registry.yarnpkg.com/lodash._baseflatten/-/lodash._baseflatten-3.1.4.tgz#0770ff80131af6e34f3b511796a7ba5214e65ff7"