diff --git a/requirements.txt b/requirements.txt
index 9ab5de4..7732fce 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,5 +12,5 @@ streamz==0.2.0
 toolz==0.8.2
 tornado==4.5.2
 urllib3==1.22
-websockets==3.4
+websockets==9.1
 zict==0.1.3