diff --git a/minlp-tokenizer/README.md b/minlp-tokenizer/README.md
index abd27131..fca3a410 100644
--- a/minlp-tokenizer/README.md
+++ b/minlp-tokenizer/README.md
@@ -17,6 +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
 
 ## 3. 使用API