diff --git a/requirements.txt b/requirements.txt
index 4550653..728dd4d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,6 +26,6 @@ starlette==0.7.4
 urllib3==1.24.2
 git+https://github.com/dpla/uvicorn.git@send-400-for-invalid-request#egg=uvicorn
 uvloop==0.12.2
-websockets==7.0
+websockets==9.1
 
 -e .