diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3ef91b47..301de340 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,8 +24,10 @@ jobs:
     strategy:
       matrix:
         ruby: ["3.4"]
-        activemodel: ["8.0"]
+        activemodel: ["8.1"]
         include:
+          - activemodel: "8.0"
+            ruby: "3.4"
           - activemodel: "7.2"
             ruby: "3.3"
           - activemodel: "7.1"
diff --git a/gemfiles/rails-8.1.gemfile b/gemfiles/rails-8.1.gemfile
new file mode 100644
index 00000000..90885b7a
--- /dev/null
+++ b/gemfiles/rails-8.1.gemfile
@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+
+gemspec path: '..'
+
+gem 'activemodel', '~> 8.1.0'
+gem 'activerecord', '~> 8.1.0'
+gem 'sqlite3', '>= 2.1'