diff --git a/solidus_volume_pricing.gemspec b/solidus_volume_pricing.gemspec
index 2c5e1a1..6f0bd46 100644
--- a/solidus_volume_pricing.gemspec
+++ b/solidus_volume_pricing.gemspec
@@ -36,6 +36,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'solidus_core', ['>= 2.0.0', '< 5']
   spec.add_dependency 'solidus_support', '~> 0.8'
 
+  spec.add_development_dependency 'capybara', '>= 3.39.1'
   spec.add_development_dependency 'shoulda-matchers'
   spec.add_development_dependency 'solidus_dev_support', '~> 2.6'
 end