diff --git a/setup.py b/setup.py
index 797d775f70ead..8a489b54c9d4b 100644
--- a/setup.py
+++ b/setup.py
@@ -154,7 +154,7 @@ def write_version(filename=os.path.join(*['airflow',
 ]
 cassandra = ['cassandra-driver>=3.13.0']
 celery = [
-    'celery>=4.1.1, <4.2.0',
+    'celery~=4.3',
     'flower>=0.7.3, <1.0',
     'tornado>=4.2.0, <6.0',  # Dep of flower. Pin to a version that works on Py3.5.2
 ]