diff --git a/test/core/definitions/serialization_test.dart b/test/core/definitions/serialization_test.dart
index bfd5ac40..212aec3b 100644
--- a/test/core/definitions/serialization_test.dart
+++ b/test/core/definitions/serialization_test.dart
@@ -307,6 +307,12 @@ void main() {
       final pskSecuritySchemeJson = {
         "scheme": "psk",
         "identity": "foobar",
+        "proxy": "https://example.org",
+        "description": "Hi. This is a test",
+        "description2": {
+          "en": "Hi. This is a test",
+        },
+        "@type": ["bar", "baz"],
       };
 
       final parsedFields = {"scheme"};