diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d9f9e92..a53f7ea 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,12 +3,12 @@ name: build
 on:
   push:
     branches:
-      - 'master'
-      - 'development'
+      - "master"
+      - "development"
   pull_request:
     branches:
-      - '**'
-      - '!images'
+      - "**"
+      - "!images"
 
 jobs:
   build:
@@ -24,6 +24,7 @@ jobs:
           - gemfiles/Gemfile.rails-6.1
           - gemfiles/Gemfile.rails-7.0
           - gemfiles/Gemfile.rails-7.1
+          - gemfiles/Gemfile.rails-7.2
         orm:
           - active_record
           - mongoid
@@ -44,22 +45,24 @@ jobs:
             ruby-version: 3.1.6
           - gemfile: gemfiles/Gemfile.rails-7.1
             ruby-version: 3.2.4
+          - gemfile: gemfiles/Gemfile.rails-7.2
+            ruby-version: 3.3.4
           - gemfile: Gemfile
-            ruby-version: 3.3.3
+            ruby-version: 3.3.4
             orm: active_record
             test-db: mysql
           - gemfile: Gemfile
-            ruby-version: 3.3.3
+            ruby-version: 3.3.4
             orm: active_record
             test-db: postgresql
           - gemfile: Gemfile
-            ruby-version: 3.3.3
+            ruby-version: 3.3.4
             orm: mongoid
             test-db: mongodb
           - gemfile: Gemfile
             ruby-version: head
             orm: active_record
-            allow_failures: 'true'
+            allow_failures: "true"
         exclude:
           - gemfile: gemfiles/Gemfile.rails-6.0
             orm: dynamoid
@@ -69,6 +72,8 @@ jobs:
             orm: dynamoid
           - gemfile: gemfiles/Gemfile.rails-7.1
             orm: dynamoid
+          - gemfile: gemfiles/Gemfile.rails-7.2
+            orm: dynamoid
 
     env:
       RAILS_ENV: test
diff --git a/Gemfile b/Gemfile
index a19e085..28a86fe 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 gemspec
 
-gem 'rails', '~> 7.1.0'
+gem 'rails', '~> 7.2.0'
 
 group :production do
   gem 'sprockets-rails'
diff --git a/activity_notification.gemspec b/activity_notification.gemspec
index 611ea57..cbceb0c 100644
--- a/activity_notification.gemspec
+++ b/activity_notification.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
   s.require_paths = ["lib"]
   s.required_ruby_version = '>= 2.1.0'
 
-  s.add_dependency 'railties', '>= 5.0.0', '< 7.2'
+  s.add_dependency 'railties', '>= 5.0.0', '< 8'
   s.add_dependency 'i18n', '>= 0.5.0'
   s.add_dependency 'jquery-rails', '>= 3.1.1'
   s.add_dependency 'swagger-blocks', '>= 3.0.0'
diff --git a/gemfiles/Gemfile.rails-7.2 b/gemfiles/Gemfile.rails-7.2
new file mode 100644
index 0000000..4593852
--- /dev/null
+++ b/gemfiles/Gemfile.rails-7.2
@@ -0,0 +1,23 @@
+source 'https://rubygems.org'
+
+gemspec path: '../'
+
+gem 'rails', '~> 7.2.0'
+gem 'sprockets-rails'
+
+group :development do
+  gem 'bullet'
+  gem 'rack-cors'
+end
+
+group :test do
+  gem 'rails-controller-testing'
+  gem 'ammeter'
+  gem 'timecop'
+  gem 'committee'
+  gem 'committee-rails', '< 0.6'
+  # gem 'coveralls', require: false
+  gem 'coveralls_reborn', require: false
+end
+
+gem 'dotenv-rails', groups: [:development, :test]