diff --git a/README.md b/README.md
index ecab103..6ff1117 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,8 @@
 **Donate link:** https://notiz.blog/donate/  
 **Tags:** OStatus, fediverse, activitypub, activitystream  
 **Requires at least:** 4.7  
-**Tested up to:** 5.9  
-**Stable tag:** 0.13.3  
+**Tested up to:** 6.0  
+**Stable tag:** 0.13.4  
 **Requires PHP:** 5.6  
 **License:** MIT  
 **License URI:** http://opensource.org/licenses/MIT  
@@ -88,6 +88,10 @@ Where 'blog' is the path to the subdirectory at which your blog resides.
 
 Project maintained on GitHub at [pfefferle/wordpress-activitypub](https://github.com/pfefferle/wordpress-activitypub).
 
+### 0.13.4 ###
+
+* fix webfinger for email identifiers
+
 ### 0.13.3 ###
 
 * fix: Create and Note should not have the same ActivityPub ID
diff --git a/activitypub.php b/activitypub.php
index 03fa376..d802cd7 100644
--- a/activitypub.php
+++ b/activitypub.php
@@ -3,7 +3,7 @@
  * Plugin Name: ActivityPub
  * Plugin URI: https://github.com/pfefferle/wordpress-activitypub/
  * Description: The ActivityPub protocol is a decentralized social networking protocol based upon the ActivityStreams 2.0 data format.
- * Version: 0.13.3
+ * Version: 0.13.4
  * Author: Matthias Pfefferle
  * Author URI: https://notiz.blog/
  * License: MIT
diff --git a/readme.txt b/readme.txt
index 244327c..f2ec63f 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,8 +3,8 @@ Contributors: pfefferle, mediaformat
 Donate link: https://notiz.blog/donate/
 Tags: OStatus, fediverse, activitypub, activitystream
 Requires at least: 4.7
-Tested up to: 5.9
-Stable tag: 0.13.3
+Tested up to: 6.0
+Stable tag: 0.13.4
 Requires PHP: 5.6
 License: MIT
 License URI: http://opensource.org/licenses/MIT
@@ -88,6 +88,10 @@ Where 'blog' is the path to the subdirectory at which your blog resides.
 
 Project maintained on GitHub at [pfefferle/wordpress-activitypub](https://github.com/pfefferle/wordpress-activitypub).
 
+= 0.13.4 =
+
+* fix webfinger for email identifiers
+
 = 0.13.3 =
 
 * fix: Create and Note should not have the same ActivityPub ID