diff --git a/rackspace.ini b/rackspace.ini
index f737a07..cdc1953 100644
--- a/rackspace.ini
+++ b/rackspace.ini
@@ -56,6 +56,7 @@ minVersion = 3.9.0
 maxVersion =
 targets = py26_64
 tagurl = svn://svn.zope.org/repos/main/ZODB/tags/
+excludeVersions = 3.10.0a1 3.10.0a2 3.10.0b1
 
 [ZODB3_2764]
 package = ZODB3