diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index bcf46ac..2e3053f 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -19,7 +19,7 @@ jobs:
     strategy:
       matrix:
         ruby: ["3.2", "3.3"]
-        rails: ["7.2.1", "7.1.4"]
+        rails: ["8.0.0", "7.2.2", "7.1.5"]
     steps:
       - name: Install ImageMagick
         run: sudo apt install imagemagick
diff --git a/riiif.gemspec b/riiif.gemspec
index 84f7ac8..94192c2 100644
--- a/riiif.gemspec
+++ b/riiif.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ['lib']
 
-  spec.add_dependency 'railties', '>= 4.2', '<8'
+  spec.add_dependency 'railties', '>= 4.2', '< 9'
   spec.add_dependency 'deprecation', '>= 1.0.0'
   spec.add_dependency 'iiif-image-api', '>= 0.1.0'