diff --git a/Gemfile b/Gemfile
index f8f7a55cb..15f9dbb11 100644
--- a/Gemfile
+++ b/Gemfile
@@ -97,7 +97,8 @@ group :test do
   gem 'simplecov', '~> 0.18.5', :require => false
   gem "ffi", platforms: [:mingw, :x64_mingw, :mswin]
   # For running system tests
-  gem 'puma'
+  # TODO: Remove version specification once Capybara supports Puma 6
+  gem 'puma', '< 6.0.0'
   gem 'capybara', '~> 3.31.0'
   gem "selenium-webdriver"
   gem 'webdrivers', '~> 4.4', require: false