diff --git a/etc/tinyproxy.conf.in b/etc/tinyproxy.conf.in
index 69521d8..73b2836 100644
--- a/etc/tinyproxy.conf.in
+++ b/etc/tinyproxy.conf.in
@@ -236,8 +236,6 @@ Allow localhost
 # traffic, as Tinyproxy has no control over what headers are exchanged.
 #
 #AddHeader "X-My-Header" "Powered by Tinyproxy"
-AddHeader "Connection" "Upgrade"
-AddHeader "Upgrade" "WebSocket"
 
 #
 # ViaProxyName: The "Via" header is required by the HTTP RFC, but using