diff --git a/requirements.txt b/requirements.txt
index 8584f1e..77c89e0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,4 +9,4 @@ six==1.14.0
 starlette==0.13.2
 uvicorn==0.11.3
 uvloop==0.14.0
-websockets==8.1
+websockets==9.1