diff --git a/setup.py b/setup.py
index 3de9e555e..3fbe4a3eb 100644
--- a/setup.py
+++ b/setup.py
@@ -304,7 +304,7 @@ def run(self):
             # InstallationStore/OAuthStateStore
             "SQLAlchemy>=1,<2",
             # Socket Mode
-            "websockets>=8,<9",
+            "websockets>=9.1,<10",
             "websocket-client>=0.57,<1",
         ],
     },