diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index be96a9a..d5c8a74 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,7 @@ jobs:
   test:
     strategy:
       matrix:
-        ruby_version: [3.1, 3.2, 3.3]
+        ruby_version: [3.1, 3.2, 3.3, 3.4]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
diff --git a/.ruby-version b/.ruby-version
index bea438e..47b322c 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.1
+3.4.1
diff --git a/Gemfile b/Gemfile
index 79e23ab..12b38ee 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,3 +2,10 @@ source 'https://rubygems.org'
 
 # Specify your gem's dependencies in ruby_audit.gemspec
 gemspec
+
+gem 'base64', '~> 0.2.0'
+gem 'ostruct', '~> 0.6.1'
+gem 'pry', '~> 0.14.1'
+gem 'rake', '~> 13.0'
+gem 'rspec', '~> 3.9'
+gem 'rubocop', '~> 1.69.2'
diff --git a/ruby_audit.gemspec b/ruby_audit.gemspec
index 4404a1c..d3ebc73 100644
--- a/ruby_audit.gemspec
+++ b/ruby_audit.gemspec
@@ -18,15 +18,11 @@ Gem::Specification.new do |spec|
   spec.homepage      = 'https://github.com/civisanalytics/ruby_audit'
   spec.license       = 'GPL-3.0-or-later'
 
-  spec.required_ruby_version = ['>= 3.1', '< 3.4']
+  spec.required_ruby_version = ['>= 3.1', '< 3.5']
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
   spec.add_dependency 'bundler-audit', '~> 0.9.0'
-  spec.add_development_dependency 'pry', '~> 0.14.1'
-  spec.add_development_dependency 'rake', '~> 13.0'
-  spec.add_development_dependency 'rspec', '~> 3.9'
-  spec.add_development_dependency 'rubocop', '~> 1.64.0'
 end
diff --git a/vendor/ruby-advisory-db b/vendor/ruby-advisory-db
index 7ef0ac6..161d6cf 160000
--- a/vendor/ruby-advisory-db
+++ b/vendor/ruby-advisory-db
@@ -1 +1 @@
-Subproject commit 7ef0ac6eeaedc63eb3a43ac7039ab195b958feaa
+Subproject commit 161d6cf3899524565a22d8b83d861856ccb0af15