diff --git a/setup.py b/setup.py
index ec049b9..c43979b 100644
--- a/setup.py
+++ b/setup.py
@@ -45,7 +45,7 @@ It is currently known to work on Linux and Mac OS X.
         'pandora_client'
     ],
     install_requires=[
-        'ox >= 2.1.541',
+        'ox >= 2.1.541,<3',
         'requests >= 1.1.0'
     ],
     keywords = [