diff --git a/setup.py b/setup.py
index eb6ec34..c3b5602 100644
--- a/setup.py
+++ b/setup.py
@@ -66,7 +66,7 @@ specific version of this database, that version being 7.5.1.
     packages = find_packages(),
 
     install_requires = [
-        'SQLAlchemy',
+        'SQLAlchemy>0.5.2',
         ],
 
     entry_points = {