diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 4d50e6a..12cec7c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -149,6 +149,8 @@ jobs:
 
       - name: 'Upload to Codecov'
         uses: codecov/codecov-action@v3
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         with:
           files: ./coverage.xml
           fail_ci_if_error: true
diff --git a/Serializer/Normalizer/ConstraintViolationListNormalizer.php b/Serializer/Normalizer/ConstraintViolationListNormalizer.php
index f67583a..dd0072b 100644
--- a/Serializer/Normalizer/ConstraintViolationListNormalizer.php
+++ b/Serializer/Normalizer/ConstraintViolationListNormalizer.php
@@ -63,6 +63,8 @@ public function normalize(mixed $object, string $format = null, array $context =
     {
         $result = $this->symfonyConstraintViolationListNormalizer->normalize($object, $format, $context);
 
+        $this->removeInternalViolationFields($result);
+
         if (\is_array($result) && \array_key_exists('detail', $result) && $result['detail']) {
             $messages = explode("\n", $result['detail']);
 
@@ -79,4 +81,18 @@ public function normalize(mixed $object, string $format = null, array $context =
 
         return $result;
     }
+
+    /**
+     * @param array $data
+     */
+    private function removeInternalViolationFields(array &$data): void
+    {
+        if (isset($data['violations'])) {
+            foreach ($data['violations'] as &$violation) {
+                unset($violation['template'], $violation['parameters']);
+                $this->removeInternalViolationFields($violation);
+            }
+            unset($violation);
+        }
+    }
 }
diff --git a/Tests/Serializer/Normalizer/ConstraintViolationListNormalizerTest.php b/Tests/Serializer/Normalizer/ConstraintViolationListNormalizerTest.php
index 1c79fc5..f34c77c 100644
--- a/Tests/Serializer/Normalizer/ConstraintViolationListNormalizerTest.php
+++ b/Tests/Serializer/Normalizer/ConstraintViolationListNormalizerTest.php
@@ -49,13 +49,32 @@ public function testNormalize(string $originDetail, string $resultDetail): void
             ->expects(self::once())
             ->method('normalize')
             ->with($object, $format, $context)
-            ->willReturn(['detail' => $originDetail])
+            ->willReturn([
+                'detail' => $originDetail,
+                'violations' => [
+                    [
+                        'propertyPath' => 'test',
+                        'title' => 'test',
+                        'type' => 'test',
+                        'template' => 'test',
+                        'parameters' => 'test',
+                    ]
+                ]
+            ])
         ;
 
         $result = (array) $this->normalizer->normalize($object, $format, $context);
 
         self::assertArrayHasKey('detail', $result);
         self::assertSame($resultDetail, $result['detail']);
+        self::assertSame(
+            [
+                'propertyPath' => 'test',
+                'title' => 'test',
+                'type' => 'test',
+            ],
+            $result['violations'][0],
+        );
     }
 
     public static function dataProviderForTestNormalize(): iterable