@@ -143,19 +143,19 @@
     );
   }

-  Future<dynamic> deserializeAsync(String value, String targetType, {bool growable = false,}) async =>
+  Future<dynamic> deserializeAsync(String value, String targetType, {bool growable = false,}) =>
     // ignore: deprecated_member_use_from_same_package
     deserialize(value, targetType, growable: growable);

   @Deprecated('Scheduled for removal in OpenAPI Generator 6.x. Use deserializeAsync() instead.')
-  dynamic deserialize(String value, String targetType, {bool growable = false,}) {
+  Future<dynamic> deserialize(String value, String targetType, {bool growable = false,}) async {
     // Remove all spaces. Necessary for regular expressions as well.
     targetType = targetType.replaceAll(' ', ''); // ignore: parameter_assignments

     // If the expected target type is String, nothing to do...
     return targetType == 'String'
       ? value
-      : fromJson(json.decode(value), targetType, growable: growable);
+      : fromJson(await compute((String j) => json.decode(j), value), targetType, growable: growable);
   }
