diff --git a/ADUtils.podspec b/ADUtils.podspec
index d991c51..c30340a 100644
--- a/ADUtils.podspec
+++ b/ADUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
   spec.name         = 'ADUtils'
-  spec.version      = '12.1.0'
+  spec.version      = '12.1.1'
   spec.authors      = 'Fabernovel'
   spec.homepage     = 'https://github.com/faberNovel/ADUtils'
   spec.summary      = 'Fabernovel\'s toolbox for iOS'
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a4fa41..9304248 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [12.1.1] - 2024-02-22
+
 ### Fixed
 - Handle default system font weights for SwiftUI
 - Add largeTitle style in font tests
diff --git a/MAINTAINER.md b/MAINTAINER.md
index d41488e..02cf827 100644
--- a/MAINTAINER.md
+++ b/MAINTAINER.md
@@ -1,8 +1,7 @@
 
 ## How to release a version
 
-- create & push a release branch `release/vA.B.C` -> the prepare_release action will automatically create the PR to merge this release into master.
-- Update version in podfile & run pod install to update podfile
-- update changelog
+- create release branch `release/vA.B.C`
+- run `bundle exec fastlane prepare_release`, this will update the version number in the podspec based on the release branch.
 - merge PR -> the CI action will trigger a pod release and tag the commit
 - once the PR is merged, merge the branch `release/vA.B.C` into master
diff --git a/Podfile.lock b/Podfile.lock
index 261bf1e..12e7c4e 100644
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -1,10 +1,10 @@
 PODS:
-  - ADUtils (12.1.0):
-    - ADUtils/objc (= 12.1.0)
-  - ADUtils/objc (12.1.0):
+  - ADUtils (12.1.1):
+    - ADUtils/objc (= 12.1.1)
+  - ADUtils/objc (12.1.1):
     - ADUtils/Swift
-  - ADUtils/Security (12.1.0)
-  - ADUtils/Swift (12.1.0)
+  - ADUtils/Security (12.1.1)
+  - ADUtils/Swift (12.1.1)
   - Nimble (12.0.1)
   - OCMock (3.9.1)
   - Quick (7.0.2)
@@ -30,7 +30,7 @@ EXTERNAL SOURCES:
     :path: "./"
 
 SPEC CHECKSUMS:
-  ADUtils: dc0a66494ee1853cb2b78476773755bd244ded7e
+  ADUtils: a3e9fdcfe76222dd3abfa4659ad1e8249ed16c95
   Nimble: b279b3ca9e094508778aab5c76417be158d3ad04
   OCMock: 9491e4bec59e0b267d52a9184ff5605995e74be8
   Quick: efab97aca76d60be86c15daa533b2cdfbe1a74d3