diff --git a/app/models/spree/gateway/pay_pal_express.rb b/app/models/spree/gateway/pay_pal_express.rb
index bc7d8cef64..7b64e37624 100644
--- a/app/models/spree/gateway/pay_pal_express.rb
+++ b/app/models/spree/gateway/pay_pal_express.rb
@@ -87,7 +87,7 @@ module Spree
         )
         refund_transaction_response = provider.refund_transaction(refund_transaction)
         if refund_transaction_response.success?
-          payment.source.update_attributes(
+          payment.source.update(
             refunded_at: Time.now,
             refund_transaction_id: refund_transaction_response.RefundTransactionID,
             state: "refunded",
diff --git a/engines/order_management/spec/services/order_management/subscriptions/stripe_payment_setup_spec.rb b/engines/order_management/spec/services/order_management/subscriptions/stripe_payment_setup_spec.rb
index 23ecc9c997..ee4d754b49 100644
--- a/engines/order_management/spec/services/order_management/subscriptions/stripe_payment_setup_spec.rb
+++ b/engines/order_management/spec/services/order_management/subscriptions/stripe_payment_setup_spec.rb
@@ -28,7 +28,7 @@ module OrderManagement
             let(:payment_method) { create(:payment_method) }
 
             it "returns the pending payment with no change" do
-              expect(payment).to_not receive(:update_attributes)
+              expect(payment).to_not receive(:update)
               expect(payment_setup.call!).to eq payment
             end
           end
@@ -38,7 +38,7 @@ module OrderManagement
 
             context "and the card is already set (the payment source is a credit card)" do
               it "returns the pending payment with no change" do
-                expect(payment).to_not receive(:update_attributes)
+                expect(payment).to_not receive(:update)
                 expect(payment_setup.call!).to eq payment
               end
             end
@@ -54,7 +54,7 @@ module OrderManagement
                 it "adds an error to the order and does not update the payment" do
                   payment_setup.call!
 
-                  expect(payment).to_not receive(:update_attributes)
+                  expect(payment).to_not receive(:update)
                   expect(payment_setup.call!).to eq payment
                   expect(order.errors[:base].first).to eq "There are no authorised "\
                                                             "credit cards available to charge"
@@ -80,7 +80,7 @@ module OrderManagement
                   it "adds an error to the order and does not update the payment" do
                     payment_setup.call!
 
-                    expect(payment).to_not receive(:update_attributes)
+                    expect(payment).to_not receive(:update)
                     expect(payment_setup.call!).to eq payment
                     expect(order.errors[:base].first).to eq "There are no authorised "\
                                                               "credit cards available to charge"
diff --git a/spec/controllers/checkout_controller_spec.rb b/spec/controllers/checkout_controller_spec.rb
index 9d1620c284..f52d901b74 100644
--- a/spec/controllers/checkout_controller_spec.rb
+++ b/spec/controllers/checkout_controller_spec.rb
@@ -291,7 +291,7 @@ describe CheckoutController, type: :controller do
       allow(controller).to receive(:current_order).and_return(order)
     end
 
-    it "returns errors and flash if order.update_attributes fails" do
+    it "returns errors and flash if order.update fails" do
       spree_post :update, format: :json, order: {}
       expect(response.status).to eq(400)
       expect(response.body).to eq({ errors: assigns[:order].errors, flash: { error: order.errors.full_messages.to_sentence } }.to_json)
diff --git a/spec/requests/api/orders_spec.rb b/spec/requests/api/orders_spec.rb
index 556ff4a619..41a050ee8f 100644
--- a/spec/requests/api/orders_spec.rb
+++ b/spec/requests/api/orders_spec.rb
@@ -52,7 +52,7 @@ describe 'api/v0/orders', type: :request do
           context "and queried by distributor id" do
             let(:'q[distributor_id_eq]') { order_dist_2.distributor.id }
 
-            before { order_dist_2.distributor.update_attributes owner: user }
+            before { order_dist_2.distributor.update owner: user }
 
             run_test! do |response|
               expect(response).to have_http_status(200)
@@ -119,7 +119,7 @@ describe 'api/v0/orders', type: :request do
               order_dist_2.order_cycle.id
             }
 
-            before { order_dist_2.distributor.update_attributes owner: user }
+            before { order_dist_2.distributor.update owner: user }
 
             run_test! do |response|
               expect(response).to have_http_status(200)