diff --git a/test/plan_builder_spec.rb b/test/plan_builder_spec.rb
index 84558a1..e95da59 100644
--- a/test/plan_builder_spec.rb
+++ b/test/plan_builder_spec.rb
@@ -210,6 +210,7 @@
             with(headers: { 'Authorization'=>'Bearer XYZ',}).
             to_return(status: 200, body: load_request_fixture('stripe_plans.json'), headers: JSON.parse(headers))
         end
+        after { Stripe.api_version = nil }
 
         it 'creates the plan online' do
           Stripe::Plan.expects(:create).with(