diff --git a/src/llamafactory/train/tuner.py b/src/llamafactory/train/tuner.py
index 5d9a85f87..38ddb90dc 100644
--- a/src/llamafactory/train/tuner.py
+++ b/src/llamafactory/train/tuner.py
@@ -24,7 +24,7 @@ from ..data import get_template_and_fix_tokenizer
 from ..extras import logging
 from ..extras.constants import V_HEAD_SAFE_WEIGHTS_NAME, V_HEAD_WEIGHTS_NAME
 from ..extras.misc import find_available_port, get_device_name, get_torch_device, infer_optim_dtype
-from ..extras.packages import is_mcore_adapter_available, is_ray_available
+from ..extras.packages import is_mcore_adapter_available, is_ray_available, is_transformers_version_greater_than
 from ..hparams import RayArguments, get_infer_args, get_ray_args, get_train_args, read_args
 from ..model import load_model, load_tokenizer
 from .callbacks import LogCallback, PissaConvertCallback, ReporterCallback
@@ -160,17 +160,28 @@ def export_model(args: Optional[dict[str, Any]] = None) -> None:
         model = model.to(output_dtype)
         logger.info_rank0(f"Convert model dtype to: {output_dtype}.")
 
-    model.save_pretrained(
-        save_directory=model_args.export_dir,
-        max_shard_size=f"{model_args.export_size}GB",
-        safe_serialization=(not model_args.export_legacy_format),
-    )
+    # Prepare save arguments (safe_serialization removed in transformers v5.0.0)
+    save_kwargs = {
+        "save_directory": model_args.export_dir,
+        "max_shard_size": f"{model_args.export_size}GB",
+    }
+    if not is_transformers_version_greater_than("5.0.0"):
+        save_kwargs["safe_serialization"] = not model_args.export_legacy_format
+
+    model.save_pretrained(**save_kwargs)
+
     if model_args.export_hub_model_id is not None:
+        # Prepare push arguments (safe_serialization removed in transformers v5.0.0)
+        push_kwargs = {
+            "max_shard_size": f"{model_args.export_size}GB",
+        }
+        if not is_transformers_version_greater_than("5.0.0"):
+            push_kwargs["safe_serialization"] = not model_args.export_legacy_format
+
         model.push_to_hub(
             model_args.export_hub_model_id,
             token=model_args.hf_hub_token,
-            max_shard_size=f"{model_args.export_size}GB",
-            safe_serialization=(not model_args.export_legacy_format),
+            **push_kwargs,
         )
 
     if finetuning_args.stage == "rm":