diff --git a/tokio/__init__.py b/tokio/__init__.py
index d08e5ea..8de7747 100755
--- a/tokio/__init__.py
+++ b/tokio/__init__.py
@@ -16,4 +16,4 @@
 # Exceptions
 from tokio.common import ConfigError
 
-__version__ = '0.12.0b2'
+__version__ = '0.12.0b3'