diff --git a/setup.py b/setup.py
index 01267705..d0006e6f 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 
 setup(
     name='bert4keras',
-    version='0.5.6',
+    version='0.5.7',
     description='an elegant bert4keras',
     long_description='bert4keras: https://github.com/bojone/bert4keras',
     license='Apache License 2.0',