diff --git a/requirements.txt b/requirements.txt
index 82f3aab5b..7b904aac4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ h11 @ git+https://github.com/python-hyper/h11.git@master
 # Explicit optionals
 a2wsgi==1.10.7
 wsproto==1.2.0
-websockets==14.1
+websockets==13.1
 
 # Packaging
 build==1.2.2.post1