diff --git a/tests/Functional/EnumDenormalizationValidationTest.php b/tests/Functional/EnumDenormalizationValidationTest.php
index 3fa939623c..8d34091543 100644
--- a/tests/Functional/EnumDenormalizationValidationTest.php
+++ b/tests/Functional/EnumDenormalizationValidationTest.php
@@ -17,8 +17,6 @@
 use ApiPlatform\Tests\Fixtures\TestBundle\ApiResource\EnumValidationResource;
 use ApiPlatform\Tests\SetupClassResourcesTrait;
 use Composer\InstalledVersions;
-use Composer\Semver\VersionParser;
-use PHPUnit\Framework\Attributes\IgnoreDeprecations;
 
 /**
  * @see https://github.com/api-platform/core/issues/8183
@@ -67,13 +65,8 @@ public function testInvalidBackedEnumValueProducesValidationViolation(): void
         $this->assertNotNull($genderViolation, 'Expected a constraint violation on "gender" property.');
     }
 
-    #[IgnoreDeprecations]
     public function testInvalidBackedEnumValueWithCollectDenormalizationErrors(): void
     {
-        if (InstalledVersions::satisfies(new VersionParser(), 'symfony/serializer', '>=8.1')) {
-            $this->expectUserDeprecationMessage('Since symfony/serializer 8.1: The "Symfony\Component\Serializer\Exception\PartialDenormalizationException::getErrors()" method is deprecated, use "Symfony\Component\Serializer\Exception\PartialDenormalizationException::getNotNormalizableValueErrors()" instead.');
-        }
-
         $response = static::createClient()->request('POST', '/enum_validation_resources_collect', [
             'headers' => ['Content-Type' => 'application/ld+json'],
             'json' => ['gender' => 'unknown'],
diff --git a/tests/Functional/NullOnNonNullablePropertyTest.php b/tests/Functional/NullOnNonNullablePropertyTest.php
index eba8ce3f10..d6aa24c078 100644
--- a/tests/Functional/NullOnNonNullablePropertyTest.php
+++ b/tests/Functional/NullOnNonNullablePropertyTest.php
@@ -16,9 +16,6 @@
 use ApiPlatform\Symfony\Bundle\Test\ApiTestCase;
 use ApiPlatform\Tests\Fixtures\TestBundle\ApiResource\NullOnNonNullableProperty\NullOnNonNullableResource;
 use ApiPlatform\Tests\SetupClassResourcesTrait;
-use Composer\InstalledVersions;
-use Composer\Semver\VersionParser;
-use PHPUnit\Framework\Attributes\IgnoreDeprecations;
 
 /** @see https://github.com/symfony/symfony/issues/64159 */
 final class NullOnNonNullablePropertyTest extends ApiTestCase
@@ -48,13 +45,8 @@ public function testNullOnNonNullablePropertyReturns400(): void
         $this->assertStringContainsString('Expected argument of type "string", "null" given at property path "name"', $body['hydra:description'] ?? $body['detail'] ?? '');
     }
 
-    #[IgnoreDeprecations]
     public function testNullOnNonNullablePropertyReturns422WhenCollectingErrors(): void
     {
-        if (InstalledVersions::satisfies(new VersionParser(), 'symfony/serializer', '>=8.1')) {
-            $this->expectUserDeprecationMessage('Since symfony/serializer 8.1: The "Symfony\Component\Serializer\Exception\PartialDenormalizationException::getErrors()" method is deprecated, use "Symfony\Component\Serializer\Exception\PartialDenormalizationException::getNotNormalizableValueErrors()" instead.');
-        }
-
         $response = self::createClient()->request('POST', '/null_on_non_nullable_resources_collect', [
             'headers' => ['Content-Type' => 'application/ld+json'],
             'json' => ['name' => null],