diff --git a/setup.py b/setup.py
index 608a01d5..6d309f7e 100644
--- a/setup.py
+++ b/setup.py
@@ -56,8 +56,8 @@ install_requires = [
     'pytest>=2.3.1',
     'pytest-xdist',
     'werkzeug>=0.7',
-    'celery>=3.0,<4.0',
-    'kombu<4.0',
+    'celery>=3.0,<4.0a0',
+    'kombu<4.0a0',
     'jinja2',
     'Babel>=1.3',
     'WebTest>=2.0.18',