diff --git a/setup.py b/setup.py
index f6c1b3d..3efe74c 100644
--- a/setup.py
+++ b/setup.py
@@ -47,7 +47,7 @@ def run(self):
         'install': CustomInstallCommand
     },
     install_requires=[
-        'numpy>=1.11.1',
+        'numpy>=1.11.1,<2',
         'tables>=3.3.0,<4',
         'pandas>=0.22.0,<3',
         'pycurl>=7.43.0,<8',