diff --git a/aiodocker/__init__.py b/aiodocker/__init__.py
index <HASH>..<HASH> 100644
--- a/aiodocker/__init__.py
+++ b/aiodocker/__init__.py
@@ -1,7 +1,7 @@
 from .docker import Docker
 
 
-__version__ = '0.11.0'
+__version__ = '0.12.0a0'
 
 
 __all__ = ("Docker", )
Bump to next alpha. (#<I>)