diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index f45a4956..f5e01f6b 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: [ '3.0', '3.1', '3.2', '3.3', '3.4', '4.0' ]
+        ruby-version: [ '3.1', '3.2', '3.3', '3.4', '4.0' ]
       fail-fast: false
 
     steps:
diff --git a/.rubocop.yml b/.rubocop.yml
index 07506c54..02383d89 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -8,7 +8,7 @@ AllCops:
     - 'lib/zitadel/client/api/**/*'
     - 'vendor/**/*'
   NewCops: enable
-  TargetRubyVersion: 3.0
+  TargetRubyVersion: 3.1
 
 Layout/LineLength:
   Max: 130
diff --git a/README.md b/README.md
index 4f7a64d5..cbd206fa 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ Zitadel website and obtain the necessary credentials to access the API.
 
 ### Minimum Requirements
 
-Ensure you have Ruby 3 or higher installed.
+Ensure you have Ruby 3.1 or higher installed.
 
 ## Using the SDK
 
diff --git a/zitadel-client.gemspec b/zitadel-client.gemspec
index 11dd6197..dd8204bb 100644
--- a/zitadel-client.gemspec
+++ b/zitadel-client.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |gemspec|
   gemspec.description =
     "Official Zitadel SDK for Ruby. Authenticate and access Zitadel's authentication and management APIs in Ruby."
   gemspec.license = 'Apache-2.0'
-  gemspec.required_ruby_version = '>= 3.0'
+  gemspec.required_ruby_version = '>= 3.1'
   gemspec.metadata = { 'rubygems_mfa_required' => 'true' }
 
   gemspec.add_dependency 'cgi', '>= 0.1'