diff --git a/wagtail/wagtailcore/__init__.py b/wagtail/wagtailcore/__init__.py
index 23b94507b..f91dabce8 100644
--- a/wagtail/wagtailcore/__init__.py
+++ b/wagtail/wagtailcore/__init__.py
@@ -1,2 +1,2 @@
-__version__ = '1.0rc1'
+__version__ = '1.1a0'
 default_app_config = 'wagtail.wagtailcore.apps.WagtailCoreAppConfig'