diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 61d087d..0c96e40 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,3 +18,5 @@ permissions:
 jobs:
   Test:
     uses: solidusio/test-solidus-extension/.github/workflows/test.yml@v1
+    with:
+      ruby_versions: "['3.4', '4.0']"
diff --git a/Gemfile b/Gemfile
index b6ae6ad..3bc8994 100644
--- a/Gemfile
+++ b/Gemfile
@@ -54,3 +54,8 @@ send(:eval_gemfile, "Gemfile-local") if File.exist? "Gemfile-local"
 
 # Pin state_machines
 gem "state_machines", "= 0.6.0"
+
+if RUBY_VERSION >= "4.0"
+  # Necessary for github_changelog_generator
+  gem "benchmark", "~> 0.5.0"
+end
diff --git a/solidus_auth_devise.gemspec b/solidus_auth_devise.gemspec
index 09c8a71..926c7ab 100644
--- a/solidus_auth_devise.gemspec
+++ b/solidus_auth_devise.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |spec|
   spec.metadata["source_code_uri"] = "https://github.com/solidusio/solidus_auth_devise"
   spec.metadata["changelog_uri"] = "https://github.com/solidusio/solidus_auth_devise/releases"
 
-  spec.required_ruby_version = Gem::Requirement.new(">= 2.5", "< 4")
+  spec.required_ruby_version = Gem::Requirement.new(">= 2.5", "< 5")
 
   # Specify which files should be added to the gem when it is released.
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.