diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index ee1bfc2..0a0975c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,12 +1,14 @@
 name: CI
 
 on:
-  - push
-  - pull_request
+  push:
+    branches:
+      - master
+  pull_request:
 
 jobs:
   test:
-    name: Ruby ${{ matrix.ruby }} / Rails ${{ matrix.rails }}
+    name: Ruby ${{ matrix.ruby }} / ${{ matrix.gemfile }}
     strategy:
       fail-fast: false
       matrix:
@@ -16,16 +18,26 @@ jobs:
           - 3.0
           - 3.1
           - 3.2
+          - 3.3
+          - 3.4
         gemfile:
           - rails-7.0
-        allow_failures:
-          - false
+          - rails-7.1
+          - rails-7.2
+          - rails-8.0
+        exclude:
+          - ruby: 3.0
+            gemfile: rails-7.2
+          - ruby: 3.0
+            gemfile: rails-8.0
+          - ruby: 3.1
+            gemfile: rails-8.0
     runs-on: ${{ matrix.os }}
     env:
       BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Ruby ${{ matrix.ruby }}
         uses: ruby/setup-ruby@v1
         with:
diff --git a/gemfiles/rails-7.1.gemfile b/gemfiles/rails-7.1.gemfile
new file mode 100644
index 0000000..858bd79
--- /dev/null
+++ b/gemfiles/rails-7.1.gemfile
@@ -0,0 +1,7 @@
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+gem "activemodel", "~> 7.1.0"
+
+gemspec path: "../"
diff --git a/gemfiles/rails-7.2.gemfile b/gemfiles/rails-7.2.gemfile
new file mode 100644
index 0000000..8397c62
--- /dev/null
+++ b/gemfiles/rails-7.2.gemfile
@@ -0,0 +1,7 @@
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+gem "activemodel", "~> 7.2.0"
+
+gemspec path: "../"
diff --git a/gemfiles/rails-8.0.gemfile b/gemfiles/rails-8.0.gemfile
new file mode 100644
index 0000000..a6b5a0f
--- /dev/null
+++ b/gemfiles/rails-8.0.gemfile
@@ -0,0 +1,7 @@
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+gem "activemodel", "~> 8.0.0"
+
+gemspec path: "../"