diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7e34c4f..f1cfe6d 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,10 +17,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Ruby 2.7
+    - name: Set up Ruby 3.1
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.7.7
+        ruby-version: '3.1'
     - name: Build
       run: |
         bundler install
diff --git a/.github/workflows/ruby-linters.yml b/.github/workflows/ruby-linters.yml
index 85fab60..a2c4fa7 100644
--- a/.github/workflows/ruby-linters.yml
+++ b/.github/workflows/ruby-linters.yml
@@ -22,7 +22,7 @@ jobs:
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: '2.7'
+        ruby-version: '3.1'
     - name: Install Gems
       run: |
         bundler install
diff --git a/.github/workflows/ruby-tests.yml b/.github/workflows/ruby-tests.yml
index 6a9f887..08f5418 100644
--- a/.github/workflows/ruby-tests.yml
+++ b/.github/workflows/ruby-tests.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.7', '3.0']
+        ruby-version: ['3.1']
 
     steps:
     - uses: actions/checkout@v4
diff --git a/.ruby-version b/.ruby-version
index 1f7da99..3ad0595 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.7
+3.1.5
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f43991d..e2b5124 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,9 @@ Please mark backwards incompatible changes with an exclamation mark at the start
 
 ## [Unreleased]
 
+### Changed
+- ! Increased the minimum Ruby version requirement to 3.1.0
+
 ## [28.4.0] - 2025-08-26
 
 ### Added
diff --git a/README.md b/README.md
index f5e9448..2662ee1 100644
--- a/README.md
+++ b/README.md
@@ -5,8 +5,8 @@ while abstracting internal implementations.
 
 ## Requirements
 
-* Ruby >= 2.7.0
-* Bundler ~> 2, < 2.5.0
+* Ruby >= 3.1.0
+* Bundler ~> 2
 
 ## Setup
 
diff --git a/jay_api.gemspec b/jay_api.gemspec
index 442079c..cbdb407 100644
--- a/jay_api.gemspec
+++ b/jay_api.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.homepage      = 'https://github.com/esrlabs/jay_api'
   spec.license       = 'Apache-2.0'
 
-  spec.required_ruby_version = Gem::Requirement.new('>= 2.7.0')
+  spec.required_ruby_version = Gem::Requirement.new('>= 3.1.0')
 
   spec.metadata['allowed_push_host'] = 'https://rubygems.org'