diff --git a/minlp-tokenizer/README.md b/minlp-tokenizer/README.md
index fca3a410..7f32ad43 100644
--- a/minlp-tokenizer/README.md
+++ b/minlp-tokenizer/README.md
@@ -17,7 +17,7 @@ pip全自动安装：
 ```
 pip install minlp-tokenizer
 ```
-适用环境：Python 3.5~3.7，TensorFlow>=1.15,<2
+适用环境：Python 3.5~3.8，TensorFlow>=1.14
 
 ## 3. 使用API
 
diff --git a/minlp-tokenizer/setup.py b/minlp-tokenizer/setup.py
index 28c48d81..be7c2ba6 100644
--- a/minlp-tokenizer/setup.py
+++ b/minlp-tokenizer/setup.py
@@ -24,15 +24,15 @@
     installed_packages = pkg_resources.working_set
     tensorflow_pkgs = [i.key for i in installed_packages if 'tensorflow' in i.key]
     if 'tensorflow-gpu' in tensorflow_pkgs:
-        install_requires.append('tensorflow-gpu>=1.15,<2')
+        install_requires.append('tensorflow-gpu>=1.14')
     else:
-        install_requires.append('tensorflow>=1.15,<2')
+        install_requires.append('tensorflow>=1.14')
 except ImportError:
-    install_requires.append('tensorflow>=1.15,<2')
+    install_requires.append('tensorflow>=1.14')
 
 setup(
     name='minlp-tokenizer',
-    version='3.2.2',
+    version='3.2.3',
     description='MiNLP-Tokenizer中文分词工具',
     author='Yuankai Guo, Liang Shi, Yupeng Chen',
     author_email='guoyuankai@xiaomi.com, shiliang1@xiaomi.com',
@@ -40,6 +40,7 @@
     long_description_content_type='text/markdown',
     url='https://github.com/XiaoMi/MiNLP',
     license='Apache 2.0',
+    python_requires='>=3.5, <=3.8',
     packages=['minlptokenizer'],
     package_dir={'minlptokenizer': 'minlptokenizer'},
     package_data={'minlptokenizer': ['model/zh/*', 'vocab/*', 'lexicon/*', 'trans/*']},
@@ -51,6 +52,7 @@
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Operating System :: OS Independent',
     ]
 )