diff --git a/OPENAPI_VERSION b/OPENAPI_VERSION
index c903c3517..793cc6975 100644
--- a/OPENAPI_VERSION
+++ b/OPENAPI_VERSION
@@ -1 +1 @@
-v1126
\ No newline at end of file
+v1154
\ No newline at end of file
diff --git a/lib/stripe/resources/checkout/session.rb b/lib/stripe/resources/checkout/session.rb
index 9760fa88d..a05371292 100644
--- a/lib/stripe/resources/checkout/session.rb
+++ b/lib/stripe/resources/checkout/session.rb
@@ -20,6 +20,7 @@ module Checkout
     class Session < APIResource
       extend Stripe::APIOperations::Create
       extend Stripe::APIOperations::List
+      include Stripe::APIOperations::Save
 
       OBJECT_NAME = "checkout.session"
       def self.object_name
@@ -89,6 +90,16 @@ def self.list_line_items(session, params = {}, opts = {})
           opts: opts
         )
       end
+
+      # Updates a Session object.
+      def self.update(id, params = {}, opts = {})
+        request_stripe_object(
+          method: :post,
+          path: format("/v1/checkout/sessions/%<id>s", { id: CGI.escape(id) }),
+          params: params,
+          opts: opts
+        )
+      end
     end
   end
 end
diff --git a/lib/stripe/resources/refund.rb b/lib/stripe/resources/refund.rb
index e3a99775f..ad962b2da 100644
--- a/lib/stripe/resources/refund.rb
+++ b/lib/stripe/resources/refund.rb
@@ -56,7 +56,7 @@ def self.create(params = {}, opts = {})
       request_stripe_object(method: :post, path: "/v1/refunds", params: params, opts: opts)
     end
 
-    # Returns a list of all refunds you created. We return the refunds in sorted order, with the most recent refunds appearing first The 10 most recent refunds are always available by default on the Charge object.
+    # Returns a list of all refunds you created. We return the refunds in sorted order, with the most recent refunds appearing first. The 10 most recent refunds are always available by default on the Charge object.
     def self.list(filters = {}, opts = {})
       request_stripe_object(method: :get, path: "/v1/refunds", params: filters, opts: opts)
     end