diff --git a/PLUGIN-CHECKSUM b/PLUGIN-CHECKSUM
index ddd92948..9b19775c 100644
--- a/PLUGIN-CHECKSUM
+++ b/PLUGIN-CHECKSUM
@@ -1 +1 @@
-3de0d7f8f7f89943ea03086bef2fce18
+641355afee3fa37a65a22dc52dda7b98
diff --git a/eduadmin.php b/eduadmin.php
index dc1e4e42..fd57b99a 100644
--- a/eduadmin.php
+++ b/eduadmin.php
@@ -9,7 +9,7 @@
  * Plugin URI:	https://www.eduadmin.se
  * Description:	EduAdmin plugin to allow visitors to book courses at your website
  * Tags:	booking, participants, courses, events, eduadmin, lega online
- * Version:	4.2.0
+ * Version:	4.2.1
  * GitHub Plugin URI: multinetinteractive/eduadmin-wordpress
  * GitHub Plugin URI: https://github.com/multinetinteractive/eduadmin-wordpress
  * Requires at least: 5.8
@@ -23,7 +23,7 @@
  */
 /*
 	EduAdmin Booking plugin
-	Copyright (C) 2015-2023 Chris Gårdenberg, MultiNet Interactive AB
+	Copyright (C) 2015-2024 Chris Gårdenberg, MultiNet Interactive AB
 
 	This program is free software: you can redistribute it and/or modify
 	it under the terms of the GNU General Public License as published by
diff --git a/readme.md b/readme.md
index 34a6f4d7..a8503d79 100644
--- a/readme.md
+++ b/readme.md
@@ -1,7 +1,7 @@
 # EduAdmin Booking
 - Requires at least: 5.8
 - Tested up to: 6.4
-- Stable tag: 4.2.0
+- Stable tag: 4.2.1
 - Requires PHP: 7.0
 - License: GPL3
 - License URI: https://www.gnu.org/licenses/gpl-3.0.en.html
@@ -40,6 +40,13 @@ If you notice that your API key doesn't work any more, you have to contact us.
 
 The full changelog available on [GitHub](https://github.com/MultinetInteractive/EduAdmin-WordPress/blob/production/CHANGELOG.md)
 
+### [4.2.1](https://github.com/MultinetInteractive/EduAdmin-WordPress/compare/v4.2.0...v4.2.1) (2024-01-10)
+
+
+#### Bug Fixes
+
+* Add return types ([ae0f126](https://github.com/MultinetInteractive/EduAdmin-WordPress/commit/ae0f126f31513731d677c7af2708b10c2a51573e))
+
 ### [4.2.0](https://github.com/MultinetInteractive/EduAdmin-WordPress/compare/v4.1.2...v4.2.0) (2023-12-21)
 
 
@@ -61,17 +68,5 @@ The full changelog available on [GitHub](https://github.com/MultinetInteractive/
 
 * Don't output the print_r of the entire programme.. ([e32d407](https://github.com/MultinetInteractive/EduAdmin-WordPress/commit/e32d4074a10a937fdd8c42f262669d669623a046))
 
-### [4.1.0](https://github.com/MultinetInteractive/EduAdmin-WordPress/compare/v4.0.0...v4.1.0) (2023-11-06)
-
-
-#### Features
-
-* Added shortcode [eduadmin-programmeinfo] with limited attributes ([b51a1b1](https://github.com/MultinetInteractive/EduAdmin-WordPress/commit/b51a1b102282dd7a23cd96aa9e459f4b116f3af0)), closes [#506](https://github.com/MultinetInteractive/EduAdmin-WordPress/issues/506)
-
-
-#### Documentation
-
-* **Shortcodes:** Added info about the new shortcode ([4fe4b80](https://github.com/MultinetInteractive/EduAdmin-WordPress/commit/4fe4b8015c095841a75cfd5348ece89bfb90944a)), closes [#506](https://github.com/MultinetInteractive/EduAdmin-WordPress/issues/506)
-
 
 
diff --git a/readme.txt b/readme.txt
index cc5e2cbf..15493aff 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,7 +3,7 @@ Contributors: mnchga
 Tags: booking, participants, courses, events, eduadmin, lega online
 Requires at least: 5.8
 Tested up to: 6.4
-Stable tag: 4.2.0
+Stable tag: 4.2.1
 Requires PHP: 7.0
 License: GPL3
 License URI: https://www.gnu.org/licenses/gpl-3.0.en.html
@@ -45,6 +45,13 @@ If you notice that your API key doesn't work any more, you have to contact us.
 
 The full changelog available on [GitHub](https://github.com/MultinetInteractive/EduAdmin-WordPress/blob/production/CHANGELOG.md)
 
+### [4.2.1](https://github.com/MultinetInteractive/EduAdmin-WordPress/compare/v4.2.0...v4.2.1) (2024-01-10)
+
+
+#### Bug Fixes
+
+* Add return types ([ae0f126](https://github.com/MultinetInteractive/EduAdmin-WordPress/commit/ae0f126f31513731d677c7af2708b10c2a51573e))
+
 ### [4.2.0](https://github.com/MultinetInteractive/EduAdmin-WordPress/compare/v4.1.2...v4.2.0) (2023-12-21)
 
 
@@ -66,17 +73,5 @@ The full changelog available on [GitHub](https://github.com/MultinetInteractive/
 
 * Don't output the print_r of the entire programme.. ([e32d407](https://github.com/MultinetInteractive/EduAdmin-WordPress/commit/e32d4074a10a937fdd8c42f262669d669623a046))
 
-### [4.1.0](https://github.com/MultinetInteractive/EduAdmin-WordPress/compare/v4.0.0...v4.1.0) (2023-11-06)
-
-
-#### Features
-
-* Added shortcode [eduadmin-programmeinfo] with limited attributes ([b51a1b1](https://github.com/MultinetInteractive/EduAdmin-WordPress/commit/b51a1b102282dd7a23cd96aa9e459f4b116f3af0)), closes [#506](https://github.com/MultinetInteractive/EduAdmin-WordPress/issues/506)
-
-
-#### Documentation
-
-* **Shortcodes:** Added info about the new shortcode ([4fe4b80](https://github.com/MultinetInteractive/EduAdmin-WordPress/commit/4fe4b8015c095841a75cfd5348ece89bfb90944a)), closes [#506](https://github.com/MultinetInteractive/EduAdmin-WordPress/issues/506)
-