diff --git a/README.md b/README.md
index 7ce1b51..52b54d2 100755
--- a/README.md
+++ b/README.md
@@ -1,11 +1,11 @@
 # Semantic-Linkbacks #
-**Contributors:** [pfefferle](https://profiles.wordpress.org/pfefferle), [dshanske](https://profiles.wordpress.org/dshanske), [edent](https://profiles.wordpress.org/edent)  
+**Contributors:** [pfefferle](https://profiles.wordpress.org/pfefferle/), [dshanske](https://profiles.wordpress.org/dshanske/), [edent](https://profiles.wordpress.org/edent/)  
 **Donate link:** https://notiz.blog/donate/  
 **Tags:** webmention, pingback, trackback, linkback, microformats, comments, indieweb  
 **Requires at least:** 4.9  
 **Requires PHP:** 5.6  
-**Tested up to:** 5.9  
-**Stable tag:** 3.11.1  
+**Tested up to:** 6.1  
+**Stable tag:** 3.12.0  
 **License:** MIT  
 **License URI:** http://opensource.org/licenses/MIT  
 
@@ -86,6 +86,10 @@ The plugin uses a locally cached version of the mystery icon normally provided b
 
 Project actively developed on Github at [pfefferle/wordpress-semantic-linkbacks](https://github.com/pfefferle/wordpress-semantic-linkbacks). Please file support issues there.
 
+### 3.12.0 ###
+
+* Deactivate itself if Webmention Version is 5.0.0 or above
+
 ### 3.11.1 ###
 
 * Fix HTML issue
diff --git a/readme.txt b/readme.txt
index 2d82f24..d419b10 100755
--- a/readme.txt
+++ b/readme.txt
@@ -4,8 +4,8 @@ Donate link: https://notiz.blog/donate/
 Tags: webmention, pingback, trackback, linkback, microformats, comments, indieweb
 Requires at least: 4.9
 Requires PHP: 5.6
-Tested up to: 5.9
-Stable tag: 3.11.1
+Tested up to: 6.1
+Stable tag: 3.12.0
 License: MIT
 License URI: http://opensource.org/licenses/MIT
 
@@ -86,6 +86,10 @@ The plugin uses a locally cached version of the mystery icon normally provided b
 
 Project actively developed on Github at [pfefferle/wordpress-semantic-linkbacks](https://github.com/pfefferle/wordpress-semantic-linkbacks). Please file support issues there.
 
+= 3.12.0 =
+
+* Deactivate itself if Webmention Version is 5.0.0 or above
+
 = 3.11.1 =
 
 * Fix HTML issue
diff --git a/semantic-linkbacks.php b/semantic-linkbacks.php
index 0e07774..6dfcd1d 100755
--- a/semantic-linkbacks.php
+++ b/semantic-linkbacks.php
@@ -5,17 +5,19 @@
  * Description: Semantic Linkbacks for WebMentions, Trackbacks and Pingbacks
  * Author: Matthias Pfefferle
  * Author URI: https://notiz.blog/
- * Version: 3.11.1
+ * Version: 3.12.0
  * License: MIT
  * License URI: http://opensource.org/licenses/MIT
  * Text Domain: semantic-linkbacks
  * Requires PHP: 5.6
  */
 
-add_action( 'plugins_loaded', array( 'Semantic_Linkbacks_Plugin', 'init' ), 11 );
+if ( ! function_exists( '\Webmention\version' ) || version_compare( \Webmention\version(), '5.0.0', '<' ) ) {
+	add_action( 'plugins_loaded', array( 'Semantic_Linkbacks_Plugin', 'init' ), 11 );
 
-// initialize admin settings
-add_action( 'admin_init', array( 'Semantic_Linkbacks_Plugin', 'admin_init' ) );
+	// initialize admin settings
+	add_action( 'admin_init', array( 'Semantic_Linkbacks_Plugin', 'admin_init' ) );
+}
 
 /**
  * Semantic linkbacks class
@@ -23,7 +25,7 @@
  * @author Matthias Pfefferle
  */
 class Semantic_Linkbacks_Plugin {
-	public static $version = '3.10.3';
+	public static $version = '3.12.0';
 	/**
 	 * Initialize the plugin, registering WordPress hooks.
 	 */