diff --git a/hanlp/components/parsers/biaffine/biaffine_dep.py b/hanlp/components/parsers/biaffine/biaffine_dep.py
index 366eded8f..5870eb313 100644
--- a/hanlp/components/parsers/biaffine/biaffine_dep.py
+++ b/hanlp/components/parsers/biaffine/biaffine_dep.py
@@ -5,7 +5,7 @@
 from collections import Counter
 from typing import Union, Any, List
 
-from hanlp.layers.transformers.pt_imports import AutoTokenizer, PreTrainedTokenizer, AutoModel_
+from hanlp.layers.transformers.pt_imports import PreTrainedTokenizer, AutoModel_, AutoTokenizer_
 import torch
 from hanlp.utils.torch_util import lengths_to_mask
 from torch import nn
@@ -282,7 +282,7 @@ def build_optimizer(self, epochs, trn, gradient_accumulation, **kwargs):
     def build_transformer_tokenizer(self):
         transformer = self.config.transformer
         if transformer:
-            transformer_tokenizer: PreTrainedTokenizer = AutoTokenizer.from_pretrained(transformer, use_fast=True)
+            transformer_tokenizer: PreTrainedTokenizer = AutoTokenizer_.from_pretrained(transformer, use_fast=True)
         else:
             transformer_tokenizer = None
         self.transformer_tokenizer = transformer_tokenizer
diff --git a/hanlp/version.py b/hanlp/version.py
index 2461aca7b..d3a74c0d7 100644
--- a/hanlp/version.py
+++ b/hanlp/version.py
@@ -2,7 +2,7 @@
 # Author: hankcs
 # Date: 2019-12-28 19:26
 
-__version__ = '2.1.0-beta.54'
+__version__ = '2.1.0-beta.55'
 """HanLP version"""