diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index 71757c393a136752d0636375bd9ddf73edc9b6a3..c137f478209cca61094254db870eb7d6ad756cd0 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -51,7 +51,7 @@ logger = logging.getLogger(__name__)
 
 # Remember to update this number every time a change is made to database
 # schema files, so the users will be informed on server restarts.
-SCHEMA_VERSION = 19
+SCHEMA_VERSION = 20
 
 dir_path = os.path.abspath(os.path.dirname(__file__))