diff --git a/setup.py b/setup.py
index f70e3897d94a0..04bafb2c76e72 100644
--- a/setup.py
+++ b/setup.py
@@ -103,7 +103,7 @@ def write_version(filename=os.path.join(*['airflow',
 azure = ['azure-storage>=0.34.0']
 sendgrid = ['sendgrid>=5.2.0']
 celery = [
-    'celery>=4.0.2',
+    'celery>4.1.0, <4.2',
     'flower>=0.7.3'
 ]
 cgroups = [