diff --git a/ref/DirectoryPackages b/ref/DirectoryPackages
index 0c0067c3a..b4e0ad779 160000
--- a/ref/DirectoryPackages
+++ b/ref/DirectoryPackages
@@ -1 +1 @@
-Subproject commit 0c0067c3a680556c62eaeb1cb53a03bd1d71de75
+Subproject commit b4e0ad779bad921549474fa2a085608f35861e46
diff --git a/src/BD.WTTS.Client.Plugins.Accelerator.ReverseProxy/Extensions/KestrelServerOptionsExtensions.cs b/src/BD.WTTS.Client.Plugins.Accelerator.ReverseProxy/Extensions/KestrelServerOptionsExtensions.cs
index c23c6a1ea..c342a3860 100644
--- a/src/BD.WTTS.Client.Plugins.Accelerator.ReverseProxy/Extensions/KestrelServerOptionsExtensions.cs
+++ b/src/BD.WTTS.Client.Plugins.Accelerator.ReverseProxy/Extensions/KestrelServerOptionsExtensions.cs
@@ -35,6 +35,7 @@ public static class KestrelServerOptionsExtensions
 
         options.Listen(IReverseProxyService.Constants.Instance.ProxyIp, httpProxyPort, listen =>
         {
+            listen.Protocols = HttpProtocols.Http1AndHttp2AndHttp3;
             var proxyMiddleware = options.ApplicationServices.GetRequiredService<HttpProxyMiddleware>();
             var tunnelMiddleware = options.ApplicationServices.GetRequiredService<TunnelMiddleware>();