diff --git a/extern/picoquic b/extern/picoquic
index 1298f42..c5e66ab 160000
--- a/extern/picoquic
+++ b/extern/picoquic
@@ -1 +1 @@
-Subproject commit 1298f42f403ea514a5d6770eaf15c1a3f0e07b56
+Subproject commit c5e66abd9090a0cf6d488d367f04a75f6d5ed646