diff --git a/backend/requirements.txt b/backend/requirements.txt
index 2ae6d15..27fd38f 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -39,5 +39,5 @@ six==1.12.0
 toolz==0.9.0
 urllib3==1.24.1
 web3==4.8.3
-websockets==6.0
+websockets==9.1
 Werkzeug==0.15.1