diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3b4ef7c..15c5779 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,15 +10,24 @@ jobs:
           - '3.0'
           - '3.1'
           - '3.2'
+          - '3.3'
         gemfile:
           - gemfiles/Gemfile.rails61
           - gemfiles/Gemfile.rails70
           - gemfiles/Gemfile.rails71
+          - gemfiles/Gemfile.rails72
+          - gemfiles/Gemfile.rails80
         exclude:
-          # rails 7.0 requires ruby >= 2.7
+          # rails 7.2 requires ruby >= 3.1
           # https://www.fastruby.io/blog/ruby/rails/versions/compatibility-table.html
-          - ruby-version: '2.6'
-            gemfile: 'gemfiles/Gemfile.rails70'
+          - ruby-version: '3.0'
+            gemfile: 'gemfiles/Gemfile.rails72'
+          # rails 8.0 requires ruby >= 3.2
+          # https://www.fastruby.io/blog/ruby/rails/versions/compatibility-table.html
+          - ruby-version: '3.0'
+            gemfile: 'gemfiles/Gemfile.rails80'
+          - ruby-version: '3.1'
+            gemfile: 'gemfiles/Gemfile.rails80'
 
     name: Ruby ${{ matrix.ruby-version }} / Bundle ${{ matrix.gemfile }}
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c20dac3..4fb74de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 ## [Unreleased]
-*no unreleased changes*
+### Fixed
+* Support Rails 7.2, 8.0, Ruby 3.3
 
 ## 7.2.5 / 2024-10-24
 ### Changed
diff --git a/gemfiles/Gemfile.rails72 b/gemfiles/Gemfile.rails72
new file mode 100644
index 0000000..49d18ea
--- /dev/null
+++ b/gemfiles/Gemfile.rails72
@@ -0,0 +1,4 @@
+source 'https://rubygems.org'
+gemspec path: '..'
+
+gem 'activesupport', '~> 7.2.0'
diff --git a/gemfiles/Gemfile.rails80 b/gemfiles/Gemfile.rails80
new file mode 100644
index 0000000..0b437b2
--- /dev/null
+++ b/gemfiles/Gemfile.rails80
@@ -0,0 +1,4 @@
+source 'https://rubygems.org'
+gemspec path: '..'
+
+gem 'activesupport', '~> 8.0.0'
diff --git a/ndr_dev_support.gemspec b/ndr_dev_support.gemspec
index 3be16fc..7ff7327 100644
--- a/ndr_dev_support.gemspec
+++ b/ndr_dev_support.gemspec
@@ -43,7 +43,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'show_me_the_cookies'
 
   # CI server dependencies:
-  spec.add_dependency 'activesupport', '>= 6.1', '< 7.2'
+  spec.add_dependency 'activesupport', '>= 6.1', '< 8.1'
   spec.add_dependency 'brakeman', '>= 4.7.1'
   spec.add_dependency 'bundler-audit'
   spec.add_dependency 'github-linguist'