diff --git a/selva_core/ext/bigvgan_v2/bigvgan.py b/selva_core/ext/bigvgan_v2/bigvgan.py
index 00f9da8..26972e2 100644
--- a/selva_core/ext/bigvgan_v2/bigvgan.py
+++ b/selva_core/ext/bigvgan_v2/bigvgan.py
@@ -365,10 +365,10 @@ class BigVGAN(
         revision: str,
         cache_dir: str,
         force_download: bool,
-        proxies: Optional[Dict],
-        resume_download: bool,
-        local_files_only: bool,
-        token: Union[str, bool, None],
+        proxies: Optional[Dict] = None,
+        resume_download: bool = False,
+        local_files_only: bool = False,
+        token: Union[str, bool, None] = None,
         map_location: str = "cpu",  # Additional argument
         strict: bool = False,  # Additional argument
         use_cuda_kernel: bool = False,