diff --git a/setup.py b/setup.py
index 896a9f1..bc6f417 100644
--- a/setup.py
+++ b/setup.py
@@ -8,8 +8,8 @@ setup(
         'pokedex': ['data/csv/*.csv']
     },
     install_requires=[
-        'SQLAlchemy>=0.9.7',
-        'whoosh>=2.5,<2.7',
+        'SQLAlchemy >=0.9.7, <1.0',
+        'whoosh >=2.5, <2.7',
         'markdown',
         'construct',
     ],