diff --git a/setup.py b/setup.py
index 52a6016f0127b8..026344ab85cf3b 100644
--- a/setup.py
+++ b/setup.py
@@ -330,7 +330,7 @@ def write_version(filename: str = os.path.join(*[dirname(__file__), "airflow", "
     'redis~=3.2',
 ]
 salesforce = [
-    'simple-salesforce>=0.72',
+    'simple-salesforce>=0.72,<1.0.0',
 ]
 samba = [
     'pysmbclient>=0.1.3',