diff --git a/stubs/ContextAwareDenormalizerInterface.stub b/stubs/ContextAwareDenormalizerInterface.stub
index a0ae8f81..9d42b711 100644
--- a/stubs/ContextAwareDenormalizerInterface.stub
+++ b/stubs/ContextAwareDenormalizerInterface.stub
@@ -6,6 +6,7 @@ interface ContextAwareDenormalizerInterface extends DenormalizerInterface
 {
     /**
      * @param mixed $data
+     * @param string $type
      * @param string|null $format
      * @param array<mixed> $context
      * @return bool
diff --git a/stubs/NormalizerInterface.stub b/stubs/NormalizerInterface.stub
index 7e6ce400..a65b5bed 100644
--- a/stubs/NormalizerInterface.stub
+++ b/stubs/NormalizerInterface.stub
@@ -11,4 +11,11 @@ interface NormalizerInterface
      * @return array<mixed>|string|int|float|bool|null
      */
     public function normalize($object, $format = null, array $context = []);
+
+    /**
+     * @param mixed $data
+     * @param string|null $format
+     * @return bool
+     */
+    public function supportsNormalization($data, $format = null);
 }