diff --git a/CHANGELOG.md b/CHANGELOG.md
index 824e44fc47..8e6d839b96 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -77,6 +77,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 -  Fixes [#3561](https://github.com/microsoft/BotFramework-WebChat/issues/3561). Remove MyGet mentions from samples, by [@corinagum](https://github.com/corinagum) in PR [#3564](https://github.com/microsoft/BotFramework-WebChat/pull/3564)
 -  Fixes [#3537](https://github.com/microsoft/BotFramework-WebChat/issues/3537). Fix some carousels improperly using aria-roledescription, by [@corinagum](https://github.com/corinagum) in PR [#3599](https://github.com/microsoft/BotFramework-WebChat/pull/3599)
 -  Fixes [#3483](https://github.com/microsoft/BotFramework-WebChat/issues/3483). IE11 anchors fixed to open securely without 'noreferrer' or 'noopener', by [@corinagum](https://github.com/corinagum) in PR [#3607](https://github.com/microsoft/BotFramework-WebChat/pull/3607)
+-  Fixes [#3565](https://github.com/microsoft/BotFramework-WebChat/issues/3565). Allow strikethrough `<s>` on sanitize markdown, by [@corinagum](https://github.com/corinagum) in PR [#3646](https://github.com/microsoft/BotFramework-WebChat/pull/3646)
 
 ### Samples
 
diff --git a/packages/bundle/src/__tests__/renderMarkdown.spec.js b/packages/bundle/src/__tests__/renderMarkdown.spec.js
index b3c799906c..ffc994dab1 100644
--- a/packages/bundle/src/__tests__/renderMarkdown.spec.js
+++ b/packages/bundle/src/__tests__/renderMarkdown.spec.js
@@ -63,4 +63,9 @@ describe('renderMarkdown', () => {
       '<p><a href="tel:505-503-4455" target="_blank" rel="noopener noreferrer">(505)503-4455</a></p>\n'
     );
   });
+
+  it('should render strikethrough text correctly', () => {
+    const options = { markdownRespectCRLF: true };
+    expect(renderMarkdown(`~~strike text~~`, options)).toBe('<p><s>strike text</s></p>\n');
+  });
 });
diff --git a/packages/bundle/src/renderMarkdown.js b/packages/bundle/src/renderMarkdown.js
index 8cdc391eb9..988df21adf 100644
--- a/packages/bundle/src/renderMarkdown.js
+++ b/packages/bundle/src/renderMarkdown.js
@@ -18,6 +18,7 @@ const SANITIZE_HTML_OPTIONS = {
     'br',
     'caption',
     'code',
+    'del',
     'div',
     'em',
     'h1',
@@ -29,11 +30,13 @@ const SANITIZE_HTML_OPTIONS = {
     'hr',
     'i',
     'img',
+    'ins',
     'li',
     'nl',
     'ol',
     'p',
     'pre',
+    's',
     'span',
     'strike',
     'strong',