diff --git a/blocks/api/raw-handling/markdown-converter.js b/blocks/api/raw-handling/markdown-converter.js
index cd0ee5ea4ebfd..ead5d6c8cfd96 100644
--- a/blocks/api/raw-handling/markdown-converter.js
+++ b/blocks/api/raw-handling/markdown-converter.js
@@ -10,6 +10,7 @@ const converter = new showdown.Converter( {
 	literalMidWordUnderscores: true,
 	omitExtraWLInCodeBlocks: true,
 	simpleLineBreaks: true,
+	strikethrough: true,
 } );
 
 /**
diff --git a/test/integration/fixtures/markdown-in.txt b/test/integration/fixtures/markdown-in.txt
index ef2b6187d1e27..c985608462247 100644
--- a/test/integration/fixtures/markdown-in.txt
+++ b/test/integration/fixtures/markdown-in.txt
@@ -1,6 +1,6 @@
 # This is a heading with *italic*
 
-This is a paragraph with a [link](https://w.org/) and **bold**.
+This is a paragraph with a [link](https://w.org/), **bold**, and ~~strikethrough~~.
 
 Preserve
 line breaks please.
diff --git a/test/integration/fixtures/markdown-out.html b/test/integration/fixtures/markdown-out.html
index 867fa64ebea50..5b674a8bfaf86 100644
--- a/test/integration/fixtures/markdown-out.html
+++ b/test/integration/fixtures/markdown-out.html
@@ -3,7 +3,7 @@ <h1>This is a heading with <em>italic</em></h1>
 <!-- /wp:heading -->
 
 <!-- wp:paragraph -->
-<p>This is a paragraph with a <a href="https://w.org/">link</a> and <strong>bold</strong>.</p>
+<p>This is a paragraph with a <a href="https://w.org/">link</a>, <strong>bold</strong>, and <del>strikethrough</del>.</p>
 <!-- /wp:paragraph -->
 
 <!-- wp:paragraph -->