diff --git a/Gemfile b/Gemfile
index 469e41a98..02c12a186 100644
--- a/Gemfile
+++ b/Gemfile
@@ -95,7 +95,7 @@ end
 group :test do
   gem "rails-dom-testing"
   gem 'mocha', (Gem.ruby_version < Gem::Version.new('2.7.0') ? ['>= 1.4.0', '< 2.0.0'] : '>= 1.4.0')
-  gem 'simplecov', '~> 0.21.2', :require => false
+  gem 'simplecov', '~> 0.22.0', :require => false
   gem "ffi", platforms: [:mingw, :x64_mingw, :mswin]
   # For running system tests
   # TODO: Remove version specification once Capybara supports Puma 6