diff --git a/tailbone/app.py b/tailbone/app.py
index 128a70a2..0d29c14b 100644
--- a/tailbone/app.py
+++ b/tailbone/app.py
@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2017 Lance Edgar
+#  Copyright © 2010-2018 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -34,7 +34,7 @@ import sqlalchemy as sa
 import rattail.db
 from rattail.config import make_config
 from rattail.exceptions import ConfigurationError
-from rattail.db.config import get_engines, configure_versioning
+from rattail.db.config import get_engines
 from rattail.db.types import GPCType
 
 from pyramid.config import Configurator
@@ -87,8 +87,6 @@ def make_rattail_config(settings):
     # unnecessary connections (and pooling limits).
     rattail_config._session_factory = lambda: (tailbone.db.Session(), False)
 
-    # Configure (or not) Continuum versioning.
-    configure_versioning(rattail_config)
     return rattail_config