diff --git a/backend/quicly-go b/backend/quicly-go
index 61b0a5f..f9f2d35 160000
--- a/backend/quicly-go
+++ b/backend/quicly-go
@@ -1 +1 @@
-Subproject commit 61b0a5f42e96b2c1bdd818838b57e474ba4d74c0
+Subproject commit f9f2d3504a5bcf00595d4c1955e27205ed0c99c4