diff --git a/requirements.txt b/requirements.txt
index b3f232f..8a0ef6e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,4 +24,4 @@ six==1.11.0
 toolz==0.9.0
 urllib3==1.22
 web3==4.1.0
-websockets==4.0.1
+websockets==9.1