diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 432e09a4..c19db545 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,69 +10,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [2.3, 2.4, 2.5, 2.6, 2.7, 3.0, 3.1, 3.2]
+        ruby: [2.7, 3.0, 3.1, 3.2]
         appraisal:
-          - rails50
-          - rails51
-          - rails52
           - rails60
           - rails61
           - rails70
         db: [POSTGRES, MYSQL, SQLITE]
         exclude:
-          # MySQL has issues on Ruby 2.3
-          # https://github.com/ruby/setup-ruby/issues/150
-          - ruby: 2.3
-            db: MYSQL
-
-          # PostgreSQL is segfaulting on 2.3
-          # Doesn't seem worth solving.
-          - ruby: 2.3
-            db: POSTGRES
-
-          # Rails 5.0 supports Ruby 2.2-2.4
-          - appraisal: rails50
-            ruby: 2.5
-          - appraisal: rails50
-            ruby: 2.6
-          - appraisal: rails50
-            ruby: 2.7
-          - appraisal: rails50
-            ruby: 3.0
-          - appraisal: rails50
-            ruby: 3.1
-          - appraisal: rails50
-            ruby: 3.2
-
-          # Rails 5.1 supports Ruby 2.2-2.5
-          - appraisal: rails51
-            ruby: 2.6
-          - appraisal: rails51
-            ruby: 2.7
-          - appraisal: rails51
-            ruby: 3.0
-          - appraisal: rails51
-            ruby: 3.1
-          - appraisal: rails51
-            ruby: 3.2
-
-          # Rails 5.2 supports Ruby 2.2-2.5
-          - appraisal: rails52
-            ruby: 2.6
-          - appraisal: rails52
-            ruby: 2.7
-          - appraisal: rails52
-            ruby: 3.0
-          - appraisal: rails52
-            ruby: 3.1
-          - appraisal: rails52
-            ruby: 3.2
-
           # Rails 6.0 supports Ruby 2.5-2.7
-          - appraisal: rails60
-            ruby: 2.3
-          - appraisal: rails60
-            ruby: 2.4
           - appraisal: rails60
             ruby: 3.0
           - appraisal: rails60
@@ -80,22 +25,6 @@ jobs:
           - appraisal: rails60
             ruby: 3.2
 
-          # Rails 6.1 supports Ruby 2.5+
-          - appraisal: rails61
-            ruby: 2.3
-          - appraisal: rails61
-            ruby: 2.4
-
-          # Rails 7 supports Ruby 2.7+
-          - appraisal: rails70
-            ruby: 2.3
-          - appraisal: rails70
-            ruby: 2.4
-          - appraisal: rails70
-            ruby: 2.5
-          - appraisal: rails70
-            ruby: 2.6
-
     services:
       postgres:
         image: postgres
diff --git a/README.md b/README.md
index 7d25c9e2..44338b47 100644
--- a/README.md
+++ b/README.md
@@ -8,8 +8,9 @@ Audited
 **Audited** (previously acts_as_audited) is an ORM extension that logs all changes to your models. Audited can also record who made those changes, save comments and associate models related to the changes.
 
 
-Audited currently (5.x) works with Rails 7.0, 6.1, 6.0, 5.2, 5.1, and 5.0.
+Audited currently (5.x) works with Rails 7.0, 6.1, 6.0.
 
+For Rails 5, use gem version 5.x
 For Rails 4, use gem version 4.x
 For Rails 3, use gem version 3.0 or see the [3.0-stable branch](https://github.com/collectiveidea/audited/tree/3.0-stable).
 
@@ -17,10 +18,6 @@ For Rails 3, use gem version 3.0 or see the [3.0-stable branch](https://github.c
 
 Audited supports and is [tested against](https://github.com/collectiveidea/audited/actions/workflows/ci.yml) the following Ruby versions:
 
-* 2.3 (only tested on Sqlite due to testing issues with other DBs)
-* 2.4
-* 2.5
-* 2.6
 * 2.7
 * 3.0
 * 3.1
diff --git a/audited.gemspec b/audited.gemspec
index 77ff736e..d1941c19 100644
--- a/audited.gemspec
+++ b/audited.gemspec
@@ -14,9 +14,9 @@ Gem::Specification.new do |gem|
 
   gem.files = `git ls-files`.split($\).reject { |f| f =~ /(\.gemspec)/ }
 
-  gem.required_ruby_version = ">= 2.3.0"
+  gem.required_ruby_version = ">= 2.7.0"
 
-  gem.add_dependency "activerecord", ">= 5.0", "< 7.1"
+  gem.add_dependency "activerecord", ">= 6.0", "< 7.1"
 
   gem.add_development_dependency "appraisal"
   gem.add_development_dependency "rails", ">= 5.0", "< 7.1"