diff --git a/setup.py b/setup.py
index 0f0c67c..a1031da 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@ with io.open(os.path.join(here, 'README.rst'), encoding='utf-8') as f:
 with io.open(os.path.join(here, 'HISTORY.rst'), encoding='utf-8') as f:
     history = f.read()
 
-install_requires = ['rebulk>=2', 'babelfish', 'python-dateutil', 'six']
+install_requires = ['rebulk==2.*', 'babelfish', 'python-dateutil', 'six']
 
 setup_requires = ['pytest-runner']