diff --git a/README.md b/README.md
index 6cd4481..e470298 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 **Tags:** OStatus, fediverse, activitypub, activitystream  
 **Requires at least:** 4.7  
 **Tested up to:** 5.3  
-**Stable tag:** 0.9.0  
+**Stable tag:** 0.9.1  
 **Requires PHP:** 5.6  
 **License:** MIT  
 **License URI:** http://opensource.org/licenses/MIT  
@@ -88,6 +88,11 @@ 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).
 
+### 0.9.1 ###
+
+* disable shared inbox
+* disable delete activity
+
 ### 0.9.0 ###
 
 * some code refactorings
diff --git a/activitypub.php b/activitypub.php
index 32c25c1..dbca209 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: 0.9.0
+ * Version: 0.9.1
  * Author: Matthias Pfefferle
  * Author URI: https://notiz.blog/
  * License: MIT
diff --git a/languages/activitypub.pot b/languages/activitypub.pot
index cd05626..78fdde3 100644
--- a/languages/activitypub.pot
+++ b/languages/activitypub.pot
@@ -2,10 +2,10 @@
 # This file is distributed under the MIT.
 msgid ""
 msgstr ""
-"Project-Id-Version: ActivityPub 0.8.3\n"
+"Project-Id-Version: ActivityPub 0.9.1\n"
 "Report-Msgid-Bugs-To: "
 "https://wordpress.org/support/plugin/wordpress-activitypub\n"
-"POT-Creation-Date: 2019-11-24 20:24:44+00:00\n"
+"POT-Creation-Date: 2019-11-27 07:27:13+00:00\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
@@ -124,7 +124,7 @@ msgstr ""
 msgid "User not found"
 msgstr ""
 
-#: includes/rest/class-inbox.php:99 includes/rest/class-inbox.php:164
+#: includes/rest/class-inbox.php:94 includes/rest/class-inbox.php:159
 msgid "Invalid payload"
 msgstr ""
 
diff --git a/readme.txt b/readme.txt
index ac47976..b8c0e4a 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Donate link: https://notiz.blog/donate/
 Tags: OStatus, fediverse, activitypub, activitystream
 Requires at least: 4.7
 Tested up to: 5.3
-Stable tag: 0.9.0
+Stable tag: 0.9.1
 Requires PHP: 5.6
 License: MIT
 License URI: http://opensource.org/licenses/MIT
@@ -88,6 +88,11 @@ 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).
 
+= 0.9.1 =
+
+* disable shared inbox
+* disable delete activity
+
 = 0.9.0 =
 
 * some code refactorings