diff --git a/mock/requirements.txt b/mock/requirements.txt
index 45f2dc0..5a16c10 100644
--- a/mock/requirements.txt
+++ b/mock/requirements.txt
@@ -16,5 +16,5 @@ requests==2.22.0
 six==1.12.0
 transitions==0.6.9
 urllib3==1.25.3
-websockets==7.0
+websockets==9.1
 Werkzeug==0.15.5