diff --git a/third-party/ao b/third-party/ao
index f1acc1e2ade..b99904b34c0 160000
--- a/third-party/ao
+++ b/third-party/ao
@@ -1 +1 @@
-Subproject commit f1acc1e2ade01fef0129a3cee62b3d8e14e22602
+Subproject commit b99904b34c0fd98f8a63ec57cbc1dc4993f74793