diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8f8a9d9..9958444 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -29,6 +29,9 @@ jobs:
             adapter: trilogy
             mysql: true
           - ruby: 3.3
+            gemfile: gemfiles/mongoid9.gemfile
+            mongodb: true
+          - ruby: 3.2
             gemfile: gemfiles/mongoid8.gemfile
             mongodb: true
           - ruby: "3.0"
diff --git a/gemfiles/mongoid9.gemfile b/gemfiles/mongoid9.gemfile
new file mode 100644
index 0000000..e53a3ca
--- /dev/null
+++ b/gemfiles/mongoid9.gemfile
@@ -0,0 +1,9 @@
+source "https://rubygems.org"
+
+gemspec path: ".."
+
+gem "mongoid", "~> 9"
+gem "minitest"
+gem "pg"
+gem "rake"
+gem "groupdate"