If you keep it at Pillow 3, you will get this error when running with Python 3.6 on x64 Windows 10 machine. ``ValueError: zlib is required unless explicitly disabled using --disable-zlib, aborting``
@@ -10,7 +10,7 @@ fake-factory~=0.7.2
html5lib<0.99999999,>=0.999
markdown~=2.6.7
path.py~=9.0
-pillow~=3.4.2
+pillow~=4.0.0
psycopg2~=2.6.2
pytz
requests<3