diff --git a/setup.py b/setup.py
index 7acab595..01b1692d 100644
--- a/setup.py
+++ b/setup.py
@@ -124,7 +124,8 @@ extras = {
         # Support for multiple migration bases was added in Alembic 0.7.
         'alembic>=0.7.0',               #                       0.7.4
 
-        'SQLAlchemy',                   # 0.7.6
+        # TODO: add support for 1.4.x and later
+        'SQLAlchemy<1.4',               # 0.7.6                 1.3.23
         'SQLAlchemy-Continuum',         # 1.1.5
     ],