diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 68ea440..a9a1a1a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,7 +20,10 @@ jobs:
     strategy:
       matrix:
         ruby-version: [3.1, 3.2, 3.3]
-        rails-version: [7.0, 7.1, 7.2]
+        rails-version: [7.0, 7.1, 7.2, 8.0]
+        exclude:
+          - ruby-version: 3.1
+            rails-version: 8.0
     runs-on: ubuntu-latest
     env:
       RAILS_VERSION: ${{ matrix.rails-version }}
diff --git a/anony.gemspec b/anony.gemspec
index 2d63564..332a241 100644
--- a/anony.gemspec
+++ b/anony.gemspec
@@ -38,8 +38,8 @@ Gem::Specification.new do |spec|
     spec.add_dependency "activerecord", "~> #{ENV['RAILS_VERSION']}"
     spec.add_dependency "activesupport", "~> #{ENV['RAILS_VERSION']}"
   else
-    spec.add_dependency "activerecord", ">= 7.0", "< 8"
-    spec.add_dependency "activesupport", ">= 7.0", "< 8"
+    spec.add_dependency "activerecord", ">= 7.0", "< 9"
+    spec.add_dependency "activesupport", ">= 7.0", "< 9"
   end
   spec.metadata["rubygems_mfa_required"] = "true"
 end