diff --git a/.circleci/config.yml b/.circleci/config.yml
index bf6f535b..40a69c63 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -45,7 +45,7 @@ executors:
     parameters:
       ruby_version:
         type: string
-        default: "3.1"
+        default: "3.2"
     docker:
       - image: public.ecr.aws/docker/library/ruby:<<parameters.ruby_version>>
         environment:
@@ -65,7 +65,7 @@ executors:
     parameters:
       ruby_version:
         type: string
-        default: "3.1"
+        default: "3.2"
     docker:
       - image: public.ecr.aws/docker/library/ruby:<<parameters.ruby_version>>
         environment:
@@ -82,7 +82,7 @@ executors:
     parameters:
       ruby_version:
         type: string
-        default: "3.1"
+        default: "3.2"
     docker:
       - image: public.ecr.aws/docker/library/ruby:<<parameters.ruby_version>>
         environment:
@@ -203,7 +203,7 @@ jobs:
         default: "base"
       ruby_version:
         type: string
-        default: "3.1"
+        default: "3.2"
     executor: 
       name: <<parameters.stack>>
       ruby_version: <<parameters.ruby_version>>
@@ -221,7 +221,7 @@ jobs:
         default: "./gemfiles/aws_30.gemfile"
       ruby_version:
         type: string
-        default: "3.1"
+        default: "3.2"
     executor: 
       name: <<parameters.stack>>
       ruby_version: <<parameters.ruby_version>>
@@ -276,12 +276,11 @@ workflows:
               stack:
                 - base
               ruby_version:
-                - "3.1"
                 - "3.2"
                 - "3.3"
                 - "3.4"
                 - "4.0"
-  libraries_ruby_31_32:
+  libraries_ruby_32_33:
     jobs:
       - test_apprisal:
           name: "test_apprisal-<<matrix.gemfile>>-ruby-<<matrix.stack>>-<<matrix.ruby_version>>"
@@ -291,9 +290,9 @@ workflows:
                 - base
               <<: *library_gemfile
               ruby_version:
-                - "3.1"
                 - "3.2"
-  libraries_ruby_33_35:
+                - "3.3"
+  libraries_ruby_34_40:
     jobs:
       - test_apprisal:
           name: "test_apprisal-<<matrix.gemfile>>-ruby-<<matrix.stack>>-<<matrix.ruby_version>>"
@@ -303,7 +302,6 @@ workflows:
                 - base
               <<: *library_gemfile
               ruby_version:
-                - "3.3"
                 - "3.4"
                 - "4.0"
             # Currently compiling the native extensions for `grpc`
@@ -317,7 +315,7 @@ workflows:
             - stack: base
               ruby_version: "4.0"
               gemfile: "./gemfiles/grpc_10.gemfile"
-  rails_ruby_31_35:
+  rails_ruby_32_40:
     jobs:
       - test_apprisal:
           name: "test_apprisal-rails-<<matrix.gemfile>>-ruby-<<matrix.stack>>-<<matrix.ruby_version>>"
@@ -332,12 +330,11 @@ workflows:
                 - "./gemfiles/rails_70.gemfile"
                 - "./gemfiles/rails_71.gemfile"
               ruby_version:
-                - "3.1"
                 - "3.2"
                 - "3.3"
                 - "3.4"
-                - "4.0"             
-  rails8_ruby_33_35:
+                - "4.0"
+  rails8_ruby_32_40:
     jobs:
       - test_apprisal:
           name: "test_apprisal-rails-8-<<matrix.gemfile>>-ruby-<<matrix.stack>>-<<matrix.ruby_version>>"
@@ -353,6 +350,7 @@ workflows:
                 - "3.2"
                 - "3.3"
                 - "3.4"
+                - "4.0"
   sequel:
       jobs:
       - test_apprisal:
@@ -367,9 +365,9 @@ workflows:
                 - "./gemfiles/sequel_57.gemfile"
                 - "./gemfiles/sequel_58.gemfile"
               ruby_version:
-                - "3.1"
                 - "3.2"
                 - "3.3"
+                - "3.4"
                 - "4.0"
   report_coverage:
     jobs:
diff --git a/README.md b/README.md
index 13b4d026..825d55f0 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,9 @@
 
 The `instana` gem provides Ruby metrics and traces (request, queue & cross-host) for [Instana](https://www.instana.com/).
 
-This gem supports Ruby versions 2.7 or greater.
+## Ruby Version Support
+
+This gem requires Ruby 3.2 or greater. We actively test and maintain compatibility with Ruby versions 3.2, 3.3, 3.4, and 4.0 to ensure optimal performance and reliability. As part of our commitment to supporting the Ruby community, we continue to provide support for Ruby versions up to 1 year after their official End-of-Life (EOL) date, giving you ample time to plan and execute version upgrades.
 
 Any and all feedback is welcome.  Happy Ruby visibility.
 
diff --git a/instana.gemspec b/instana.gemspec
index 6ccbaa3c..0277f4f6 100644
--- a/instana.gemspec
+++ b/instana.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.required_ruby_version = '>= 3.0'
+  spec.required_ruby_version = '>= 3.2'
   spec.platform      = defined?(JRUBY_VERSION) ? 'java' : Gem::Platform::RUBY
 
   # spec.add_development_dependency "bundler", "=> 2.0"