diff --git a/fastNLP/__init__.py b/fastNLP/__init__.py
index 76265a01..3cb6aa88 100644
--- a/fastNLP/__init__.py
+++ b/fastNLP/__init__.py
@@ -71,7 +71,7 @@ __all__ = [
     
     'logger'
 ]
-__version__ = '0.4.5'
+__version__ = '0.5.0'
 
 import sys