diff --git a/__tests__/__snapshots__/index.test.js.snap b/__tests__/__snapshots__/index.test.js.snap
index 77098bc14..ee1e41c77 100644
--- a/__tests__/__snapshots__/index.test.js.snap
+++ b/__tests__/__snapshots__/index.test.js.snap
@@ -1002,6 +1002,8 @@ exports[`export multiple Markdown renderers renders plain markdown as React 1`]
 
 exports[`export multiple Markdown renderers renders plainText from AST 1`] = `"Hello World"`;
 
+exports[`heading 1`] = `"<h2 class=\\"heading heading-2 header-scroll\\" align=\\"\\"><div class=\\"heading-anchor anchor waypoint\\" id=\\"example-header\\"></div><div class=\\"heading-text\\"><div id=\\"section-example-header\\" class=\\"heading-anchor_backwardsCompatibility\\"></div>Example Header</div><a aria-label=\\"Skip link to Example Header\\" class=\\"heading-anchor-icon fa fa-anchor\\" href=\\"#example-header\\"></a></h2>"`;
+
 exports[`image 1`] = `"<p><span aria-label=\\"Image\\" class=\\"img\\" role=\\"button\\" tabindex=\\"0\\"><img src=\\"http://example.com/image.png\\" alt=\\"Image\\" align=\\"\\" caption=\\"\\" height=\\"auto\\" title=\\"\\" width=\\"auto\\"><span class=\\"lightbox\\" role=\\"dialog\\" tabindex=\\"0\\"><span class=\\"lightbox-inner\\"><img src=\\"http://example.com/image.png\\" align=\\"\\" caption=\\"\\" height=\\"auto\\" title=\\"Click to close...\\" width=\\"auto\\" alt=\\"Image\\" class=\\"lightbox-img\\" loading=\\"lazy\\"></span></span></span></p>"`;
 
 exports[`list items 1`] = `
diff --git a/__tests__/index.test.js b/__tests__/index.test.js
index a35feb686..2a5040e23 100644
--- a/__tests__/index.test.js
+++ b/__tests__/index.test.js
@@ -34,6 +34,10 @@ test('image', () => {
   expect(mount(markdown.default('![Image](http://example.com/image.png)')).html()).toMatchSnapshot();
 });
 
+test('heading', () => {
+  expect(mount(markdown.default('## Example Header')).html()).toMatchSnapshot();
+});
+
 test('magic image', () => {
   expect(
     mount(