diff --git a/hecl/extern/boo b/hecl/extern/boo
index ee60772b3..1834be435 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit ee60772b3900c5359a619de5d9221fff58dd3b96
+Subproject commit 1834be435f4929390ce47a1273ab7b81629d22bf