diff --git a/blogs/2019/05/23/strict-null.md b/blogs/2019/05/23/strict-null.md
index aa3ad1fad..66d346ad2 100644
--- a/blogs/2019/05/23/strict-null.md
+++ b/blogs/2019/05/23/strict-null.md
@@ -10,7 +10,7 @@ Author: Matt Bierner
 ---
 # Strict null checking Visual Studio Code
 
-May 23, 2019 by Matt Bierner, [@mattbierner](https://twitter.com/mattbierner)
+May 23, 2019 by Matt Bierner, [@mattbierner](https://hachyderm.io/@mattbierner)
 
 ## Safety permits speed
 
@@ -242,4 +242,4 @@ We took this approach with strict null checking VS Code, and will apply it to ot
 Happy Coding,
 
 Matt Bierner, VS Code Team Member
-[@mattbierner](https://twitter.com/mattbierner)
\ No newline at end of file
+[@mattbierner](https://hachyderm.io/@mattbierner)
\ No newline at end of file
diff --git a/blogs/2020/05/14/vscode-build-2020.md b/blogs/2020/05/14/vscode-build-2020.md
index 2110b3a85..26695be67 100644
--- a/blogs/2020/05/14/vscode-build-2020.md
+++ b/blogs/2020/05/14/vscode-build-2020.md
@@ -60,7 +60,7 @@ Additionally, the VS Code team will be online for an **Ask the Team** session on
 In addition to the live sessions, you'll have the opportunity to learn more about VS Code with 6 videos that will be available on-demand on the [Channel 9](https://channel9.msdn.com/Events/Build/2020) website.
 
 * [**Visual Studio Code tips and tricks**](https://aka.ms/Build2020AppDev-VSCodeTips)
-  * Matt Bierner ([@mattbierner](https://twitter.com/mattbierner))
+  * Matt Bierner ([@mattbierner](https://hachyderm.io/@mattbierner))
 * [**What every Visual Studio Code user should know about GitHub**](https://aka.ms/Build2020AppDev-VSCodeAndGitHub)
   * Rachel Macfarlane ([@RMacfarlane](https://github.com/RMacfarlane)), Alex Ross ([@alexr00](https://github.com/alexr00))
 * [**What's New in TypeScript**](https://aka.ms/Build2020AppDev-TypeScript)
diff --git a/blogs/2022/08/16/markdown-language-server.md b/blogs/2022/08/16/markdown-language-server.md
index 1820fa110..0aece4c85 100644
--- a/blogs/2022/08/16/markdown-language-server.md
+++ b/blogs/2022/08/16/markdown-language-server.md
@@ -9,7 +9,7 @@ Author: Matt Bierner
 
 # Introducing the Markdown Language Server
 
-August 16, 2022 by Matt Bierner, [@MattBierner](https://twitter.com/MattBierner)
+August 16, 2022 by Matt Bierner, [@MattBierner](https://hachyderm.io/@mattbierner)
 
 Markdown support was the first feature I took ownership of when I joined Visual Studio Code back in 2016. Wow, has it really been six years? It was a great match though. I've worked with Markdown long enough that I often find myself hopefully typing backticks and asterisks into Twitter, Outlook, and just about every textbox my cursor lands in. It's been incredibly rewarding to grow VS Code's built-in Markdown support over the years and see how our Markdown extension has directly and indirectly shaped core features like webviews and notebooks.
 
@@ -91,7 +91,7 @@ If you're interested in checking out the source code or contributing, you can fi
 
 Happy Coding!
 
-Matt Bierner, [@MattBierner](https://twitter.com/MattBierner)
+Matt Bierner, [@MattBierner](https://hachyderm.io/@mattbierner)
 
 [ls]: https://microsoft.github.io/language-server-protocol/
 [server]: https://github.com/microsoft/vscode/tree/main/extensions/markdown-language-features/server
diff --git a/release-notes/v1_71.md b/release-notes/v1_71.md
index 702ae6272..562a603c0 100644
--- a/release-notes/v1_71.md
+++ b/release-notes/v1_71.md
@@ -437,7 +437,7 @@ Tree items with commands that have their enablement clause resolving to false wi
 
 ### Markdown Language Server
 
-The Markdown support in VS Code has been reimplemented to be a full-featured [Language Server](https://microsoft.github.io/language-server-protocol). You can read about [Matt Bierner's](https://twitter.com/MattBierner) journey in his [Markdown Language Server blog post](https://code.visualstudio.com/blogs/2022/08/16/markdown-language-server), where he describes adding programming language features such as **Find All References**, **Rename Symbol**, and broken link detection for Markdown files.
+The Markdown support in VS Code has been reimplemented to be a full-featured [Language Server](https://microsoft.github.io/language-server-protocol). You can read about [Matt Bierner's](https://hachyderm.io/@mattbierner) journey in his [Markdown Language Server blog post](https://code.visualstudio.com/blogs/2022/08/16/markdown-language-server), where he describes adding programming language features such as **Find All References**, **Rename Symbol**, and broken link detection for Markdown files.
 
 ### Upcoming change to context of 'view/title' menu