diff --git a/pymc3/__init__.py b/pymc3/__init__.py
index <HASH>..<HASH> 100644
--- a/pymc3/__init__.py
+++ b/pymc3/__init__.py
@@ -1,5 +1,5 @@
 # pylint: disable=wildcard-import
-__version__ = "3.5"
+__version__ = "3.6.rc1"
 
 from .blocking import *
 from .distributions import *
Update verison to <I>.rc1.