diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b4aed22..3453bac 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,13 +29,6 @@ jobs:
           - "3.1"
           - "3.0"
     steps:
-      - uses: ravsamhq/notify-slack-action@v1
-        if: always()
-        with:
-          status: ${{ job.status }}
-          notify_when: "failure"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
       - uses: actions/checkout@v1
       - name: Install package dependencies
         run: "[ -e $APT_DEPS ] || sudo apt-get install -y --no-install-recommends $APT_DEPS"
diff --git a/README.md b/README.md
index 2cc282e..16132b2 100644
--- a/README.md
+++ b/README.md
@@ -5,14 +5,8 @@ Internal support gem for `Hanami::Action` params validation.
 ## Status
 
 [![Gem Version](https://badge.fury.io/rb/hanami-validations.svg)](https://badge.fury.io/rb/hanami-validations)
-[![CI](https://github.com/hanami/validations/workflows/ci/badge.svg?branch=main)](https://github.com/hanami/validations/actions?query=workflow%3Aci+branch%3Amain)
-[![Test Coverage](https://codecov.io/gh/hanami/validations/branch/main/graph/badge.svg)](https://codecov.io/gh/hanami/validations)
+[![CI](https://github.com/hanami/validations/actions/workflows/ci.yml/badge.svg)](https://github.com/hanami/validations/actions?query=workflow%3Aci+branch%3Amain)
 [![Depfu](https://badges.depfu.com/badges/af6c6be539d9d587c7541ae7a013c9ff/overview.svg)](https://depfu.com/github/hanami/validations?project=Bundler)
-[![Inline Docs](http://inch-ci.org/github/hanami/validations.svg)](http://inch-ci.org/github/hanami/validations)
-
-## Version
-
-**This branch contains the code for `hanami-validations` 2.x.**
 
 ## Contact
 
@@ -20,17 +14,14 @@ Internal support gem for `Hanami::Action` params validation.
 * Community: http://hanamirb.org/community
 * Guides: https://guides.hanamirb.org
 * Mailing List: http://hanamirb.org/mailing-list
-* API Doc: http://rdoc.info/gems/hanami-validations
+* API Doc: http://rubydoc.info/gems/hanami-validations
 * Bugs/Issues: https://github.com/hanami/validations/issues
-* Support: http://stackoverflow.com/questions/tagged/hanami
 * Chat: http://chat.hanamirb.org
 
-## Rubies
-
-__Hanami::Validations__ supports Ruby (MRI) 3.0+
-
 ## Installation
 
+__Hanami::Validations__ supports Ruby (MRI) 3.1+
+
 Add this line to your application's Gemfile:
 
 ```ruby
@@ -86,4 +77,4 @@ See [hanami-controller][controller] for more detail on params validation.
 
 ## Copyright
 
-Copyright © 2014 Hanami Team – Released under MIT License
+Copyright © 2014–2024 Hanami Team – Released under MIT License
diff --git a/hanami-validations.gemspec b/hanami-validations.gemspec
index dfbd2c6..937f45d 100644
--- a/hanami-validations.gemspec
+++ b/hanami-validations.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
   spec.metadata["rubygems_mfa_required"] = "true"
-  spec.required_ruby_version = ">= 3.0"
+  spec.required_ruby_version = ">= 3.1"
 
   spec.add_dependency "dry-validation", ">= 1.10", "< 2"
   spec.add_dependency "zeitwerk", "~> 2.6.0"