diff --git a/stripe.gemspec b/stripe.gemspec
index 40e6f3a4e..53386fcd9 100644
--- a/stripe.gemspec
+++ b/stripe.gemspec
@@ -25,10 +25,5 @@ spec = Gem::Specification.new do |s|
     lib/stripe.rb
     lib/stripe/version.rb
     lib/data/ca-certificates.crt
-    vendor/stripe-json/lib/json/pure.rb
-    vendor/stripe-json/lib/json/common.rb
-    vendor/stripe-json/lib/json/version.rb
-    vendor/stripe-json/lib/json/pure/generator.rb
-    vendor/stripe-json/lib/json/pure/parser.rb
   }
 end