diff --git a/setup.py b/setup.py
index c3c7c47b267f3..bacf2c91626e9 100644
--- a/setup.py
+++ b/setup.py
@@ -199,7 +199,7 @@ def write_version(filename=os.path.join(*["airflow", "git_version"])):
     'azure-mgmt-resource>=2.2.0',
 ]
 cassandra = [
-    'cassandra-driver>=3.13.0',
+    'cassandra-driver>=3.13.0,<3.21.0',
 ]
 celery = [
     'celery~=4.3',