Raise SA dep to 0.9.3

setup.py

@@ -62,7 +62,7 @@ setup(
     ],
     install_requires=[
         'six',
-        'SQLAlchemy>=0.8.0',
+        'SQLAlchemy>=0.9.3',
         'toolz>=0.4.1',
         'total_ordering>=0.1'
         if sys.version_info[0] == 2 and sys.version_info[1] < 7 else ''

tox.ini

@@ -6,4 +6,4 @@ commands = pip install -e ".[test]"
            py.test
 install_command = pip install {packages}
 deps =
-     SQLAlchemy==0.9.2
+     SQLAlchemy==0.9.3