diff --git a/requirements.txt b/requirements.txt
index d9768e2..a7ffe1b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,6 +43,6 @@ traitlets==4.3.3
 urllib3==1.25.9
 wcwidth==0.1.9
 webencodings==0.5.1
-websockets==8.1
+websockets==9.1
 Werkzeug==1.0.1
 zipp==3.1.0