diff --git a/pytorch_lightning/__init__.py b/pytorch_lightning/__init__.py
index dc44c3804f..bcc28398ee 100644
--- a/pytorch_lightning/__init__.py
+++ b/pytorch_lightning/__init__.py
@@ -1,6 +1,6 @@
 """Root package info."""
 
-__version__ = '0.6.4.dev'
+__version__ = '0.6.4.dev1'
 __author__ = 'William Falcon et al.'
 __author_email__ = 'waf2107@columbia.edu'
 __license__ = 'Apache-2.0'