diff --git a/configs/config.py b/configs/config.py
index 78bfdae..c8aaff6 100644
--- a/configs/config.py
+++ b/configs/config.py
@@ -58,6 +58,7 @@ class Config:
             self.noautoopen,
             self.dml,
             self.nocheck,
+            self.update,
         ) = self.arg_parse()
         self.instead = ""
         self.preprocess_per = 3.7
@@ -97,6 +98,9 @@ class Config:
         parser.add_argument(
             "--nocheck", action="store_true", help="Run without checking assets"
         )
+        parser.add_argument(
+            "--update", action="store_true", help="Update to latest assets"
+        )
         cmd_opts = parser.parse_args()
 
         cmd_opts.port = cmd_opts.port if 0 <= cmd_opts.port <= 65535 else 7865
@@ -109,6 +113,7 @@ class Config:
             cmd_opts.noautoopen,
             cmd_opts.dml,
             cmd_opts.nocheck,
+            cmd_opts.update,
         )
 
     # has_mps is only available in nightly pytorch (for now) and MasOS 12.3+.
diff --git a/gui_v1.py b/gui_v1.py
index 2b30b00..8f910d9 100644
--- a/gui_v1.py
+++ b/gui_v1.py
@@ -156,11 +156,12 @@ if __name__ == "__main__":
             tmp = os.path.join(now_dir, "TEMP")
             shutil.rmtree(tmp, ignore_errors=True)
             os.makedirs(tmp, exist_ok=True)
-            if not check_all_assets():
-                download_all_assets(tmpdir=tmp)
-                if not check_all_assets():
-                    printt("counld not satisfy all assets needed.")
-                    exit(1)
+            if not check_all_assets(update=self.config.update):
+                if self.config.update:
+                    download_all_assets(tmpdir=tmp)
+                    if not check_all_assets(update=False):
+                        printt("counld not satisfy all assets needed.")
+                        exit(1)
 
         def load(self):
             try:
diff --git a/infer-web.py b/infer-web.py
index c38a8fc..bdf3357 100644
--- a/infer-web.py
+++ b/infer-web.py
@@ -57,11 +57,12 @@ vc = VC(config)
 if not config.nocheck:
     from infer.lib.rvcmd import check_all_assets, download_all_assets
 
-    if not check_all_assets():
-        download_all_assets(tmpdir=tmp)
-        if not check_all_assets():
-            logging.error("counld not satisfy all assets needed.")
-            exit(1)
+    if not check_all_assets(update=config.update):
+        if config.update:
+            download_all_assets(tmpdir=tmp)
+            if not check_all_assets(update=False):
+                logging.error("counld not satisfy all assets needed.")
+                exit(1)
 
 if config.dml == True:
 
diff --git a/infer/lib/rvcmd.py b/infer/lib/rvcmd.py
index 06971f8..56e9277 100644
--- a/infer/lib/rvcmd.py
+++ b/infer/lib/rvcmd.py
@@ -16,7 +16,7 @@ def sha256(f) -> str:
     return sha256_hash.hexdigest()
 
 
-def check_model(dir_name: Path, model_name: str, hash: str) -> bool:
+def check_model(dir_name: Path, model_name: str, hash: str, remove_incorrect=False) -> bool:
     target = dir_name / model_name
     relname = target.as_posix()
     relname = relname[relname.rindex("assets/") :]
@@ -30,12 +30,12 @@ def check_model(dir_name: Path, model_name: str, hash: str) -> bool:
             logger.info(f"{target} sha256 hash mismatch.")
             logger.info(f"expected: {hash}")
             logger.info(f"real val: {digest}")
-            os.remove(str(target))
+            if remove_incorrect: os.remove(str(target))
             return False
     return True
 
 
-def check_all_assets() -> bool:
+def check_all_assets(update=False) -> bool:
     BASE_DIR = Path(__file__).resolve().parent.parent.parent
 
     logger.info("checking hubret & rmvpe...")
@@ -44,14 +44,15 @@ def check_all_assets() -> bool:
         BASE_DIR / "assets" / "hubert",
         "hubert_base.pt",
         os.environ["sha256_hubert_base_pt"],
+        update,
     ):
         return False
     if not check_model(
-        BASE_DIR / "assets" / "rmvpe", "rmvpe.pt", os.environ["sha256_rmvpe_pt"]
+        BASE_DIR / "assets" / "rmvpe", "rmvpe.pt", os.environ["sha256_rmvpe_pt"], update,
     ):
         return False
     if not check_model(
-        BASE_DIR / "assets" / "rmvpe", "rmvpe.onnx", os.environ["sha256_rmvpe_onnx"]
+        BASE_DIR / "assets" / "rmvpe", "rmvpe.onnx", os.environ["sha256_rmvpe_onnx"], update,
     ):
         return False
 
@@ -73,14 +74,14 @@ def check_all_assets() -> bool:
     ]
     for model in model_names:
         menv = model.replace(".", "_")
-        if not check_model(rvc_models_dir, model, os.environ[f"sha256_v1_{menv}"]):
+        if not check_model(rvc_models_dir, model, os.environ[f"sha256_v1_{menv}"], update):
             return False
 
     rvc_models_dir = BASE_DIR / "assets" / "pretrained_v2"
     logger.info("checking pretrained models v2...")
     for model in model_names:
         menv = model.replace(".", "_")
-        if not check_model(rvc_models_dir, model, os.environ[f"sha256_v2_{menv}"]):
+        if not check_model(rvc_models_dir, model, os.environ[f"sha256_v2_{menv}"], update):
             return False
 
     logger.info("checking uvr5_weights...")
@@ -97,12 +98,12 @@ def check_all_assets() -> bool:
     ]
     for model in model_names:
         menv = model.replace(".", "_")
-        if not check_model(rvc_models_dir, model, os.environ[f"sha256_uvr5_{menv}"]):
+        if not check_model(rvc_models_dir, model, os.environ[f"sha256_uvr5_{menv}"], update):
             return False
     if not check_model(
         BASE_DIR / "assets" / "uvr5_weights" / "onnx_dereverb_By_FoxJoy",
         "vocals.onnx",
-        os.environ[f"sha256_uvr5_vocals_onnx"],
+        os.environ[f"sha256_uvr5_vocals_onnx"], update,
     ):
         return False