diff --git a/bert4keras/__init__.py b/bert4keras/__init__.py
index 31d29d82..8701e4d9 100644
--- a/bert4keras/__init__.py
+++ b/bert4keras/__init__.py
@@ -1 +1 @@
-__version__ = '0.5.5'
+__version__ = '0.5.6'