diff --git a/program/__init__.py b/program/__init__.py
index 1e89d4c..c2bfd61 100644
--- a/program/__init__.py
+++ b/program/__init__.py
@@ -1,3 +1,3 @@
-__version__ = "0.6.8"
+__version__ = "0.6.4"
 
 # update patch : F.1.22