diff --git a/equilib/info.py b/equilib/info.py
index b4a1b263..352b42ec 100644
--- a/equilib/info.py
+++ b/equilib/info.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-__version__ = "0.5.5"
+__version__ = "0.5.6"
 __author__ = "Haruya Ishikawa"
 __email__ = "haru.ishi43@gmail.com"
 __homepage__ = "www.hoge.com"