diff --git a/core/modules/rest/tests/modules/rest_test/src/Plugin/rest/resource/NoSerializationClassTestResource.php b/core/modules/rest/tests/modules/rest_test/src/Plugin/rest/resource/NoSerializationClassTestResource.php
index 3e83a4ce74..2689588481 100644
--- a/core/modules/rest/tests/modules/rest_test/src/Plugin/rest/resource/NoSerializationClassTestResource.php
+++ b/core/modules/rest/tests/modules/rest_test/src/Plugin/rest/resource/NoSerializationClassTestResource.php
@@ -25,7 +25,7 @@ class NoSerializationClassTestResource extends ResourceBase {
    *
    * @return \Drupal\rest\ResourceResponse
    */
-  public function post(array $data = []) {
+  public function post(array $data) {
     return new ResourceResponse($data);
   }
 
diff --git a/core/modules/rest/tests/src/Kernel/RequestHandlerTest.php b/core/modules/rest/tests/src/Kernel/RequestHandlerTest.php
index 2b8855917e..110b19745d 100644
--- a/core/modules/rest/tests/src/Kernel/RequestHandlerTest.php
+++ b/core/modules/rest/tests/src/Kernel/RequestHandlerTest.php
@@ -95,7 +95,7 @@ class StubRequestHandlerResourcePlugin extends ResourceBase {
 
   public function get() {}
   public function post() {}
-  public function patch() {}
+  public function patch($original, Request $request) {}
   public function delete() {}
 
 }