diff --git a/hanlp/version.py b/hanlp/version.py
index e6c869887..3ea0811aa 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'
+__version__ = '2.1.1'
 """HanLP version"""
 
 
diff --git a/setup.py b/setup.py
index 9344cd9fc..54ee6beba 100644
--- a/setup.py
+++ b/setup.py
@@ -15,9 +15,12 @@
 FASTTEXT = 'fasttext-wheel==0.9.2'
 sys_version_info = sys.version_info
 
-TOKENIZERS = []
-if (sys_version_info.major, sys_version_info.minor) == (3, 6) and sys.platform in {'darwin', 'win32'}:
-    TOKENIZERS = ['tokenizers==0.10.3']
+EXTRAS = []
+if sys.platform in {'darwin', 'win32'}:
+    if (sys_version_info.major, sys_version_info.minor) == (3, 6):
+        EXTRAS = ['tokenizers==0.10.3']
+    elif (sys_version_info.major, sys_version_info.minor) == (3, 7):
+        EXTRAS = ['safetensors<0.5']  # Failed to build safetensors
 
 extras_require = {
     'amr': [
@@ -64,10 +67,10 @@
         'transformers>=4.1.1',
         'sentencepiece>=0.1.91',  # Essential for tokenization_bert_japanese
         'torch>=1.6.0',
-        'hanlp-common>=0.0.22',
+        'hanlp-common>=0.0.23',
         'hanlp-trie>=0.0.4',
         'hanlp-downloader',
-        *TOKENIZERS,
+        *EXTRAS,
     ],
     extras_require=extras_require,
     python_requires='>=3.6',