diff --git a/synapse/__init__.py b/synapse/__init__.py
index 43c5821ade..ea07fda14a 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -27,4 +27,4 @@ try:
 except ImportError:
     pass
 
-__version__ = "0.33.6"
+__version__ = "0.33.7rc1"