diff --git a/ember-highcharts/src/components/high-charts.ts b/ember-highcharts/src/components/high-charts.ts
index 85897cf..5f16b13 100644
--- a/ember-highcharts/src/components/high-charts.ts
+++ b/ember-highcharts/src/components/high-charts.ts
@@ -243,6 +243,19 @@ export default class HighCharts extends Component<HighChartsSignature> {
       SolidGauge.default(Highcharts);
     }
 
+    if (
+      this.args.chartOptions?.chart?.type === 'treegraph' ||
+      this.args.chartOptions?.chart?.type === 'treemap'
+    ) {
+      const Treemap = await import('highcharts/modules/treemap');
+      Treemap.default(Highcharts);
+    }
+
+    if (this.args.chartOptions?.chart?.type === 'treegraph') {
+      const Treegraph = await import('highcharts/modules/treegraph');
+      Treegraph.default(Highcharts);
+    }
+
     if (this.args.chartOptions?.chart?.type === 'waterfall') {
       const More = await import('highcharts/highcharts-more');
       More.default(Highcharts);
diff --git a/test-app/app/components/chart-treegraph.hbs b/test-app/app/components/chart-treegraph.hbs
new file mode 100644
index 0000000..0e6c14c
--- /dev/null
+++ b/test-app/app/components/chart-treegraph.hbs
@@ -0,0 +1,4 @@
+<HighCharts
+  @content={{this.chartData}}
+  @chartOptions={{this.chartOptions}}
+/>
diff --git a/test-app/app/components/chart-treegraph.js b/test-app/app/components/chart-treegraph.js
new file mode 100644
index 0000000..6f33945
--- /dev/null
+++ b/test-app/app/components/chart-treegraph.js
@@ -0,0 +1,28 @@
+import Component from '@glimmer/component';
+
+export default class Treegraph extends Component {
+  chartOptions = {
+    chart: {
+      type: 'treegraph',
+    },
+    title: {
+      text: 'Organizational Structure',
+    },
+  };
+
+  chartData = [
+    {
+      keys: ['id', 'parent'],
+      data: [
+        ['Alice'],
+        ['Bill', 'Alice'],
+        ['Carson', 'Bill'],
+        ['Edward', 'Bill'],
+        ['Dwayne', 'Alice'],
+      ],
+      dataLabels: {
+        format: '{point.id}',
+      },
+    },
+  ];
+}
diff --git a/test-app/app/templates/index.hbs b/test-app/app/templates/index.hbs
index 6c49d36..9f3e1ac 100644
--- a/test-app/app/templates/index.hbs
+++ b/test-app/app/templates/index.hbs
@@ -54,3 +54,8 @@
   <h3>Scatter chart</h3>
   <ChartScatter />
 </section>
+
+<section>
+  <h3>Treegraph chart</h3>
+  <ChartTreegraph />
+</section>