diff --git a/core/modules/serialization/tests/src/Unit/Normalizer/EntityNormalizerTest.php b/core/modules/serialization/tests/src/Unit/Normalizer/EntityNormalizerTest.php
index 759f98c4f7e3a973390fbedbf7687f718efdef3a..648c2f92e645ca21c206ece5ffc09fc80f058469 100644
--- a/core/modules/serialization/tests/src/Unit/Normalizer/EntityNormalizerTest.php
+++ b/core/modules/serialization/tests/src/Unit/Normalizer/EntityNormalizerTest.php
@@ -94,18 +94,11 @@ public function testNormalize() {
       ->method('getFields')
       ->willReturn($definitions);
 
-    $serializer = $this->getMockBuilder('Symfony\Component\Serializer\Serializer')
-      ->disableOriginalConstructor()
-      ->onlyMethods(['normalize'])
-      ->getMock();
-    $serializer->expects($this->exactly(2))
-      ->method('normalize')
-      ->withConsecutive(
-        [$list_item_1, 'test_format'],
-        [$list_item_2, 'test_format'],
-      );
+    $serializer = $this->prophesize('Symfony\Component\Serializer\Serializer');
+    $serializer->normalize($list_item_1, 'test_format', [])->shouldBeCalled();
+    $serializer->normalize($list_item_2, 'test_format', [])->shouldBeCalled();
 
-    $this->entityNormalizer->setSerializer($serializer);
+    $this->entityNormalizer->setSerializer($serializer->reveal());
 
     $this->entityNormalizer->normalize($content_entity, 'test_format');
   }
@@ -224,18 +217,15 @@ public function testDenormalizeWithValidBundle() {
 
     // Setup expectations for the serializer. This will be called for each field
     // item.
-    $serializer = $this->getMockBuilder('Symfony\Component\Serializer\Serializer')
-      ->disableOriginalConstructor()
-      ->onlyMethods(['denormalize'])
-      ->getMock();
-    $serializer->expects($this->exactly(2))
-      ->method('denormalize')
-      ->withConsecutive(
-        ['value_1', get_class($key_1), NULL, ['target_instance' => $key_1, 'entity_type' => 'test']],
-        ['value_2', get_class($key_2), NULL, ['target_instance' => $key_2, 'entity_type' => 'test']],
-      );
+    $serializer = $this->prophesize('Symfony\Component\Serializer\Serializer');
+    $serializer->denormalize('value_1', get_class($key_1), NULL, ['target_instance' => $key_1, 'entity_type' => 'test'])
+      ->willReturn(NULL)
+      ->shouldBeCalled();
+    $serializer->denormalize('value_2', get_class($key_2), NULL, ['target_instance' => $key_2, 'entity_type' => 'test'])
+      ->willReturn(NULL)
+      ->shouldBeCalled();
 
-    $this->entityNormalizer->setSerializer($serializer);
+    $this->entityNormalizer->setSerializer($serializer->reveal());
 
     $this->assertNotNull($this->entityNormalizer->denormalize($test_data, 'Drupal\Core\Entity\ContentEntityBase', NULL, ['entity_type' => 'test']));
   }
@@ -377,18 +367,15 @@ public function testDenormalizeWithNoBundle() {
 
     // Setup expectations for the serializer. This will be called for each field
     // item.
-    $serializer = $this->getMockBuilder('Symfony\Component\Serializer\Serializer')
-      ->disableOriginalConstructor()
-      ->onlyMethods(['denormalize'])
-      ->getMock();
-    $serializer->expects($this->exactly(2))
-      ->method('denormalize')
-      ->withConsecutive(
-        ['value_1', get_class($key_1), NULL, ['target_instance' => $key_1, 'entity_type' => 'test']],
-        ['value_2', get_class($key_2), NULL, ['target_instance' => $key_2, 'entity_type' => 'test']],
-      );
-
-    $this->entityNormalizer->setSerializer($serializer);
+    $serializer = $this->prophesize('Symfony\Component\Serializer\Serializer');
+    $serializer->denormalize('value_1', get_class($key_1), NULL, ['target_instance' => $key_1, 'entity_type' => 'test'])
+      ->willReturn(NULL)
+      ->shouldBeCalled();
+    $serializer->denormalize('value_2', get_class($key_2), NULL, ['target_instance' => $key_2, 'entity_type' => 'test'])
+      ->willReturn(NULL)
+      ->shouldBeCalled();
+
+    $this->entityNormalizer->setSerializer($serializer->reveal());
 
     $this->assertNotNull($this->entityNormalizer->denormalize($test_data, 'Drupal\Core\Entity\ContentEntityBase', NULL, ['entity_type' => 'test']));
   }
diff --git a/core/phpstan-baseline.neon b/core/phpstan-baseline.neon
index 04e8de9b634b7ce58d9b26cfb04cedc7718d7869..c30a4a8f631da80152dbcb0aa2301ed5442032b0 100644
--- a/core/phpstan-baseline.neon
+++ b/core/phpstan-baseline.neon
@@ -2159,11 +2159,6 @@ parameters:
 			count: 1
 			path: modules/serialization/src/Normalizer/EntityNormalizer.php
 
-		-
-			message: "#^Call to deprecated method withConsecutive\\(\\) of class PHPUnit\\\\Framework\\\\MockObject\\\\Builder\\\\InvocationMocker\\.$#"
-			count: 3
-			path: modules/serialization/tests/src/Unit/Normalizer/EntityNormalizerTest.php
-
 		-
 			message: "#^Method Drupal\\\\shortcut\\\\Form\\\\SetCustomize\\:\\:save\\(\\) should return int but return statement is missing\\.$#"
 			count: 1