diff --git a/requirements.txt b/requirements.txt
index df4cea6..9d085d2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ idna==2.10
 pycparser==2.20
 python-dateutil==2.8.1
 python-engineio==3.14.2
-websockets==12.0
+websockets==11.0.3
 requests==2.25.0
 six==1.16.0
 SQLAlchemy==1.4.18