diff --git a/requirements.txt b/requirements.txt
index a2a3a1a..cee2ca5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,4 +34,4 @@ toolz==0.9.0
 urllib3==1.24.1
 vine==1.2.0
 web3==4.8.2
-websockets==6.0
+websockets==9.1